Repository: terrapower/armi

Issue:
Automatically close stale PRs?
There is a GitHub Action that would allow us to close PRs that have been open too long:

* https://github.com/actions/stale

I notice [the MOOSE team using it](https://github.com/idaholab/moose/blob/7c55923541c02ca9abfdef6b90b73e77eab77467/.github/workflows/stale.yml). Their plan, which I propose to emulate, is to warn people their PR is getting stale after 100 days, and then 7 days later close the PR.

Discussion:
albeanth: in practice, if this warning gets flagged but then there's activity, will the PR still get closed? or to avoid that do folks need to remove the stale label? maybe something else? 

Patch:
diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
index 34ac1c7e..5eea821a 100644
--- a/.github/workflows/coverage.yaml
+++ b/.github/workflows/coverage.yaml
@@ -15,6 +15,8 @@ on:
 
 jobs:
   build:
+    # Deploying coverage to coveralls.io should not happen on forks
+    if: github.repository == 'terrapower/armi'
     runs-on: ubuntu-24.04
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 8f7f1a0c..ca1d20cb 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -7,7 +7,8 @@ on:
 
 jobs:
   build:
-
+    # Building and deploying docs is broken on forked repos
+    if: github.repository == 'terrapower/armi'
     runs-on: ubuntu-22.04
 
     steps:
diff --git a/.github/workflows/stale.yaml b/.github/workflows/stale.yaml
new file mode 100644
index 00000000..cc016738
--- /dev/null
+++ b/.github/workflows/stale.yaml
@@ -0,0 +1,27 @@
+# This workflow warns and then closes PRs that have had no activity for a specified amount of time.
+#
+# You can adjust the behavior by modifying this file.
+# For more information, see: https://github.com/actions/stale
+name: Mark Stale PRs
+
+on:
+  schedule:
+  # once a day at 3:14 AM
+  - cron: '14 3 * * *'
+
+permissions:
+  pull-requests: write
+
+jobs:
+  stale:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/stale@v8
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          stale-pr-message: "This pull request has been automatically marked as stale because it has not had any activity in the last 100 days. It will be closed in 7 days if no further activity occurs. Thank you for your contributions."
+          stale-pr-label: "stale"
+          days-before-pr-stale: 100
+          days-before-pr-close: 7
+          days-before-issue-stale: -1
+          operations-per-run: 100
\ No newline at end of file
diff --git a/armi/physics/fuelCycle/fuelHandlers.py b/armi/physics/fuelCycle/fuelHandlers.py
index 229adb8f..fbc06d15 100644
--- a/armi/physics/fuelCycle/fuelHandlers.py
+++ b/armi/physics/fuelCycle/fuelHandlers.py
@@ -54,19 +54,9 @@ class FuelHandler:
     """
 
     def __init__(self, operator):
-        # we need access to the operator to find the core, get settings, grab
-        # other interfaces, etc.
+        # we need access to the operator to find the core, get settings, grab other interfaces, etc.
         self.o = operator
         self.moved = []
-        self._handleBackwardsCompatibility()
-
-    def _handleBackwardsCompatibility(self):
-        # prepSearch used to be part of the API but is deprecated. This will
-        # trigger a warning if it's implemented.
-        # We have to do this hack until we phase out old inputs.
-        # This basically asks: "Did the custom subclass override prepSearch?"
-        if self.prepSearch.__func__ is not FuelHandler.prepSearch:
-            self.prepSearch()
 
     @property
     def cycle(self):
@@ -207,30 +197,28 @@ class FuelHandler:
         """Aux function to run before XS generation (do moderation, etc)."""
         pass
 
-    def prepSearch(self, *args, **kwargs):
+    @staticmethod
+    def _compareAssem(candidate, current):
+        """Check whether the candidate assembly should replace the current ideal assembly.
+
+        Given a candidate tuple (diff1, a1) and current tuple (diff2, a2), decide whether the
+        candidate is better than the current ideal. This first compares the diff1 and diff2 values.
+        If diff1 is sufficiently less than diff2, a1 wins, returning True. Otherwise, False. If
+        diff1 and diff2 are sufficiently close, the assembly with the lesser assemNum wins. This
+        should result in a more stable comparison than on floating-point comparisons alone.
         """
-        Optional method that can be implemented in preparation of shuffling.
+        if np.isclose(candidate[0], current[0], rtol=1e-8, atol=1e-8):
+            return candidate[1].p.assemNum < current[1].p.assemNum
+        else:
+            return candidate[0] < current[0]
 
-        Often used to prepare the scope of a shuffling branch search.
+    @staticmethod
+    def _getParamMax(a, paramName, blockLevelMax=True):
+        """Get parameter with Block-level maximum."""
+        if blockLevelMax:
+            return a.getChildParamValues(paramName).max()
 
-        Notes
-        -----
-        This was used historically to keep a long-lived fuel handler in sync
-        with the reactor and can now technically be removed from the API, but
-        many historical fuel management inputs still expect it to be called
-        by the framework, so here it remains. New developments should
-        avoid using it. Most code using it has been refactored to just use
-        a ``_prepSearch`` private method.
-
-        It now should not be used and will trigger a DeprecationWarning
-        in the constructor. It's still here because old user-input code
-        calls the parent's prepSearch, which is this.
-        """
-        warnings.warn(
-            "`FuelHandler.prepSearch` is being deprecated from the framework. Please "
-            "change your fuel management input to call this method directly.",
-            DeprecationWarning,
-        )
+        return a.p[paramName]
 
     def findAssembly(
         self,
@@ -295,24 +283,20 @@ class FuelHandler:
 
         maxParam : float or list, optional
             a parameter to compare to maxVal for setting upper bounds of acceptable assemblies.
-            If list,
-            must correspond to parameters in maxVal in order.
+            If list, must correspond to parameters in maxVal in order.
 
         minVal : float or list, optional
             a value or a (parameter, multiplier) tuple for setting lower bounds
 
-            For instance, if minParam = 'timeToLimit' and minVal=10, only assemblies with
-            timeToLimit higher than 10 will be returned.  (Of course, there is also maxParam and
-            maxVal)
+            For instance, if minParam='timeToLimit' and minVal=10, only assemblies with timeToLimit
+            higher than 10 will be returned. (Of course, there is also maxParam and maxVal)
 
         maxVal : float or list, optional
             a value or a (parameter, multiplier) tuple for setting upper bounds
 
         mandatoryLocations : list, optional
-            a list of string-representations of locations in the core for limiting the search to
-            several places
-
-            Any locations also included in `excludedLocations` will be excluded.
+            A list of string-representations of locations in the core for limiting the search to
+            several places. Any locations also included in `excludedLocations` will be excluded.
 
         excludedLocations : list, optional
             a list of string-representations of locations in the core that will be excluded from
@@ -349,20 +333,19 @@ class FuelHandler:
             default: false.
 
         findFromSfp : bool, optional
-            if true, will look in the spent-fuel pool instead of in the core.
+            If true, will look in the spent-fuel pool instead of in the core.
 
         maxNumAssems : int, optional
             The maximum number of assemblies to return. Only relevant if findMany==True
 
         circularRingFlag : bool, optional
-            A flag to toggle on using rings that are based on distance from the center of the
-            reactor
+            Toggle using rings that are based on distance from the center of the reactor
 
         Notes
         -----
-        The call signature on this method may have gotten slightly out of hand as
-        valuable capabilities were added in fuel management studies. For additional expansion,
-        it may be worth reconsidering the design of these query operations ;).
+        The call signature on this method may have gotten slightly out of hand as valuable
+        capabilities were added in fuel management studies. For additional expansion, it may be
+        worth reconsidering the design of these query operations.
 
         Returns
         -------
@@ -381,29 +364,8 @@ class FuelHandler:
                                      typeSpec=Flags.FEED | Flags.FUEL)
 
         """
-
-        def compareAssem(candidate, current):
-            """Check whether the candidate assembly should replace the current ideal
-            assembly.
-
-            Given a candidate tuple (diff1, a1) and current tuple (diff2, a2), decide
-            whether the candidate is better than the current ideal. This first compares
-            the diff1 and diff2 values. If diff1 is sufficiently less than diff2, a1
-            wins, returning True. Otherwise, False. If diff1 and diff2 are sufficiently
-            close, the assembly with the lesser assemNum wins. This should result in a
-            more stable comparison than on floating-point comparisons alone.
-            """
-            if np.isclose(candidate[0], current[0], rtol=1e-8, atol=1e-8):
-                return candidate[1].p.assemNum < current[1].p.assemNum
-            else:
-                return candidate[0] < current[0]
-
-        def getParamWithBlockLevelMax(a, paramName):
-            if blockLevelMax:
-                return a.getChildParamValues(paramName).max()
-            return a.p[paramName]
-
-        assemList = []  # list for storing multiple results if findMany is true.
+        # list for storing multiple results if findMany is true.
+        assemList = []
 
         # process input arguments
         if targetRing is None:
@@ -452,7 +414,7 @@ class FuelHandler:
             compVal = compareTo * mult
         elif param:
             # assume compareTo is an assembly
-            compVal = getParamWithBlockLevelMax(compareTo, param) * mult
+            compVal = FuelHandler._getParamMax(compareTo, param, blockLevelMax) * mult
 
         if coords:
             # find the assembly closest to xt,yt if coords are given without considering params.
@@ -501,12 +463,16 @@ class FuelHandler:
                         if isinstance(minVal, tuple):
                             # tuple turned in. it's a multiplier and a param
                             realMinVal = (
-                                getParamWithBlockLevelMax(a, minVal[0]) * minVal[1]
+                                FuelHandler._getParamMax(a, minVal[0], blockLevelMax)
+                                * minVal[1]
                             )
                         else:
                             realMinVal = minVal
 
-                        if getParamWithBlockLevelMax(a, minParam) < realMinVal:
+                        if (
+                            FuelHandler._getParamMax(a, minParam, blockLevelMax)
+                            < realMinVal
+                        ):
                             # this assembly does not meet the minVal specifications. Skip it.
                             innocent = False
                             break  # for speed (not a big deal here)
@@ -521,12 +487,16 @@ class FuelHandler:
                         if isinstance(maxVal, tuple):
                             # tuple turned in. it's a multiplier and a param
                             realMaxVal = (
-                                getParamWithBlockLevelMax(a, maxVal[0]) * maxVal[1]
+                                FuelHandler._getParamMax(a, maxVal[0], blockLevelMax)
+                                * maxVal[1]
                             )
                         else:
                             realMaxVal = maxVal
 
-                        if getParamWithBlockLevelMax(a, maxParam) > realMaxVal:
+                        if (
+                            FuelHandler._getParamMax(a, maxParam, blockLevelMax)
+                            > realMaxVal
+                        ):
                             # this assembly has a maxParam that's higher than maxVal and therefore
                             # doesn't qualify. skip it.
                             innocent = False
@@ -551,23 +521,25 @@ class FuelHandler:
 
                 # Now find the assembly with the param closest to the target val.
                 if param:
-                    diff = abs(getParamWithBlockLevelMax(a, param) - compVal)
+                    diff = abs(
+                        FuelHandler._getParamMax(a, param, blockLevelMax) - compVal
+                    )
 
                     if (
                         forceSide == 1
-                        and getParamWithBlockLevelMax(a, param) > compVal
-                        and compareAssem((diff, a), minDiff)
+                        and FuelHandler._getParamMax(a, param, blockLevelMax) > compVal
+                        and FuelHandler._compareAssem((diff, a), minDiff)
                     ):
                         # forceSide=1, so that means look in rings further out
                         minDiff = (diff, a)
                     elif (
                         forceSide == -1
-                        and getParamWithBlockLevelMax(a, param) < compVal
-                        and compareAssem((diff, a), minDiff)
+                        and FuelHandler._getParamMax(a, param, blockLevelMax) < compVal
+                        and FuelHandler._compareAssem((diff, a), minDiff)
                     ):
                         # forceSide=-1, so that means look in rings closer in from the targetRing
                         minDiff = (diff, a)
-                    elif compareAssem((diff, a), minDiff):
+                    elif FuelHandler._compareAssem((diff, a), minDiff):
                         # no preference of which side, just take the one with the closest param.
                         minDiff = (diff, a)
                 else:
diff --git a/armi/physics/neutronics/latticePhysics/latticePhysicsInterface.py b/armi/physics/neutronics/latticePhysics/latticePhysicsInterface.py
index 0574ede4..d1782546 100644
--- a/armi/physics/neutronics/latticePhysics/latticePhysicsInterface.py
+++ b/armi/physics/neutronics/latticePhysics/latticePhysicsInterface.py
@@ -20,9 +20,9 @@ Parent classes for codes responsible for generating broad-group cross sections
 import os
 import shutil
 
+from armi import interfaces
 from armi import nuclearDataIO
-from armi import interfaces, runLog
-from armi.utils import codeTiming
+from armi import runLog
 from armi.physics import neutronics
 from armi.physics.neutronics.const import CONF_CROSS_SECTION
 from armi.physics.neutronics.settings import (
@@ -32,26 +32,20 @@ from armi.physics.neutronics.settings import (
     CONF_XS_KERNEL,
     CONF_LATTICE_PHYSICS_FREQUENCY,
 )
-from armi.utils.customExceptions import important
 from armi.physics.neutronics import LatticePhysicsFrequency
-
+from armi.utils import codeTiming
 
 LATTICE_PHYSICS = "latticePhysics"
 
 
-@important
-def SkippingXsGen_BuChangedLessThanTolerance(tolerance):
-    return "Skipping XS Generation this cycle because median block burnups changes less than {}%".format(
-        tolerance
-    )
-
-
 def setBlockNeutronVelocities(r, neutronVelocities):
     """
     Set the ``mgNeutronVelocity`` parameter for each block using the ``neutronVelocities`` dictionary data.
 
     Parameters
     ----------
+    r : Reactor
+        A Reactor object, that we want to modify.
     neutronVelocities : dict
         Dictionary that is keyed with the ``representativeBlock`` XS IDs with values of multigroup neutron
         velocity data computed by MC2.
@@ -504,9 +498,6 @@ class LatticePhysicsInterface(interfaces.Interface):
                             "Recalculating Cross-sections".format(xsID, buOld, buNow)
                         )
 
-            if not idsChangedBurnup:
-                SkippingXsGen_BuChangedLessThanTolerance(self._burnupTolerance)
-
         return idsChangedBurnup
 
     def _getProcessesPerNode(self):
diff --git a/armi/reactor/composites.py b/armi/reactor/composites.py
index 91b53b82..db0e6499 100644
--- a/armi/reactor/composites.py
+++ b/armi/reactor/composites.py
@@ -175,7 +175,6 @@ class FlagSerializer(parameters.Serializer):
             flagCls.extend({k: auto() for k in missingFlags})
 
         flagOrderNow = flagCls.sortedFields()
-        flagSetNow = set(flagOrderNow)
 
         if all(i == j for i, j in zip(flagOrderPassed, flagOrderNow)):
             out = [flagCls.from_bytes(row.tobytes()) for row in data]
diff --git a/armi/resources/burn-chain.yaml b/armi/resources/burn-chain.yaml
index 8049061d..a51ae65f 100644
--- a/armi/resources/burn-chain.yaml
+++ b/armi/resources/burn-chain.yaml
@@ -1,1221 +1,1221 @@
 AM241:
-- transmutation:
-    branch: 1.0
-    products:
-    - PU240
-    type: n2n
-- transmutation:
-    branch: 0.1384
-    products:
-    - PU242
-    type: nGamma
-- transmutation:
-    branch: 0.6616
-    products:
-    - CM242
-    - DUMP2
-    type: nGamma
-- transmutation:
-    branch: 0.2
-    products:
-    - AM242M
-    - DUMP2
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.6500e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- decay:
-    branch: 1.0
-    products:
-    - NP237
-    type: ad
-- decay:
-    branch: 4.120055e-12
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU240
+      type: n2n
+  - transmutation:
+      branch: 0.1384
+      products:
+        - PU242
+      type: nGamma
+  - transmutation:
+      branch: 0.6616
+      products:
+        - CM242
+        - DUMP2
+      type: nGamma
+  - transmutation:
+      branch: 0.2
+      products:
+        - AM242M
+        - DUMP2
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.6500e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - decay:
+      branch: 1.0
+      products:
+        - NP237
+      type: ad
+  - decay:
+      branch: 4.120055e-12
+      products:
+        - LFP41
+      type: sf
 AM242G:
-- transmutation:
-    branch: 1.0
-    products:
-    - AM241
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - AM243
-    type: nGamma
-- decay:
-    branch: 0.173
-    products:
-    - PU242
-    type: ec
-- decay:
-    branch: 0.827
-    products:
-    - CM242
-    type: bmd
+  - transmutation:
+      branch: 1.0
+      products:
+        - AM241
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - AM243
+      type: nGamma
+  - decay:
+      branch: 0.173
+      products:
+        - PU242
+      type: ec
+  - decay:
+      branch: 0.827
+      products:
+        - CM242
+      type: bmd
 AM242M:
-- transmutation:
-    branch: 1.0
-    products:
-    - AM241
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - AM243
-    type: nGamma
-- decay:
-    branch: 0.822865
-    products:
-    - PU242
-    type: ec
-- decay:
-    branch: 0.172135
-    products:
-    - CM242
-    type: bmd
-- decay:
-    branch: 0.005
-    products:
-    - NP238
-    type: ad
+  - transmutation:
+      branch: 1.0
+      products:
+        - AM241
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - AM243
+      type: nGamma
+  - decay:
+      branch: 0.822865
+      products:
+        - PU242
+      type: ec
+  - decay:
+      branch: 0.172135
+      products:
+        - CM242
+      type: bmd
+  - decay:
+      branch: 0.005
+      products:
+        - NP238
+      type: ad
 AM243:
-- transmutation:
-    branch: 0.5
-    products:
-    - AM242M
-    type: n2n
-- transmutation:
-    branch: 0.0865
-    products:
-    - CM242
-    type: n2n
-- transmutation:
-    branch: 0.4135
-    products:
-    - PU242
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CM244
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - NP239
-    - PU239
-    type: ad
+  - transmutation:
+      branch: 0.5
+      products:
+        - AM242M
+      type: n2n
+  - transmutation:
+      branch: 0.0865
+      products:
+        - CM242
+      type: n2n
+  - transmutation:
+      branch: 0.4135
+      products:
+        - PU242
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM244
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - NP239
+        - PU239
+      type: ad
 B10:
-- transmutation:
-    branch: 1.0
-    products:
-    - B11
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LI7
-    - DUMP1
-    type: nalph
-- transmutation:
-    branch: 1.0
-    products:
-    - DUMP1
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - BE9
-    - DUMP1
-    type: nd
-- transmutation:
-    branch: 1.0
-    products:
-    - BE10
-    - DUMP1
-    type: np
+  - transmutation:
+      branch: 1.0
+      products:
+        - B11
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LI7
+        - DUMP1
+      type: nalph
+  - transmutation:
+      branch: 1.0
+      products:
+        - DUMP1
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - BE9
+        - DUMP1
+      type: nd
+  - transmutation:
+      branch: 1.0
+      products:
+        - BE10
+        - DUMP1
+      type: np
 B11:
-- transmutation:
-    branch: 1.0
-    products:
-    - DUMP1
-    type: nGamma
-- transmutation:
-    # n-alphas to Li-8 -> Be-8 -> 2 alphas
-    branch: 1.0
-    products:
-    - HE4
-    - DUMP1
-    type: nalph
-    productParticle: HE4
-- transmutation:
-    branch: 1.0
-    products:
-    - B10
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - BE9
-    - DUMP1
-    type: nt
+  - transmutation:
+      branch: 1.0
+      products:
+        - DUMP1
+      type: nGamma
+  - transmutation:
+      # n-alphas to Li-8 -> Be-8 -> 2 alphas
+      branch: 1.0
+      products:
+        - HE4
+        - DUMP1
+      type: nalph
+      productParticle: HE4
+  - transmutation:
+      branch: 1.0
+      products:
+        - B10
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - BE9
+        - DUMP1
+      type: nt
 BE9:
-- transmutation:
-    branch: 1.0
-    products:
-    - LI6
-    - DUMP1
-    type: nalph
-- transmutation:
-    branch: 1.0
-    products:
-    - LI7
-    - DUMP1
-    type: nt
+  - transmutation:
+      branch: 1.0
+      products:
+        - LI6
+        - DUMP1
+      type: nalph
+  - transmutation:
+      branch: 1.0
+      products:
+        - LI7
+        - DUMP1
+      type: nt
 BK249:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM244
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CF250
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - CF249
-    type: bmd
-- decay:
-    branch: 4.755215e-10
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM244
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CF250
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - CF249
+      type: bmd
+  - decay:
+      branch: 4.755215e-10
+      products:
+        - LFP41
+      type: sf
 CF249:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM244
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CF250
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - CM245
-    type: ad
-- decay:
-    branch: 5.00000e-09
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM244
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CF250
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - CM245
+      type: ad
+  - decay:
+      branch: 5.00000e-09
+      products:
+        - LFP41
+      type: sf
 CF250:
-- transmutation:
-    branch: 1.0
-    products:
-    - CF249
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CF251
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - CM246
-    type: ad
-- decay:
-    branch: 7.70000e-04
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CF249
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CF251
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - CM246
+      type: ad
+  - decay:
+      branch: 7.70000e-04
+      products:
+        - LFP41
+      type: sf
 CF251:
-- transmutation:
-    branch: 1.0
-    products:
-    - CF250
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CF252
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - CM247
-    type: ad
+  - transmutation:
+      branch: 1.0
+      products:
+        - CF250
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CF252
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - CM247
+      type: ad
 CF252:
-- transmutation:
-    branch: 1.0
-    products:
-    - CF251
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: nGamma
-- decay:
-    branch: 9.69080e-01
-    products:
-    - CM248
-    type: ad
-- decay:
-    branch: 3.093567e-02
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CF251
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: nGamma
+  - decay:
+      branch: 9.69080e-01
+      products:
+        - CM248
+      type: ad
+  - decay:
+      branch: 3.093567e-02
+      products:
+        - LFP41
+      type: sf
 CM242:
-- transmutation:
-    branch: 0.99
-    products:
-    - AM241
-    type: n2n
-- transmutation:
-    branch: 0.01
-    products:
-    - NP237
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CM243
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - PU238
-    type: ad
-- decay:
-    branch: 6.794544e-08
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 0.99
+      products:
+        - AM241
+      type: n2n
+  - transmutation:
+      branch: 0.01
+      products:
+        - NP237
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM243
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - PU238
+      type: ad
+  - decay:
+      branch: 6.794544e-08
+      products:
+        - LFP41
+      type: sf
 CM243:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM242
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - CM244
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- decay:
-    branch: 0.9971
-    products:
-    - PU239
-    type: ad
-- decay:
-    branch: 0.0029
-    products:
-    - AM243
-    type: ec
-- decay:
-    branch: 5.30000e-11
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM242
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM244
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - decay:
+      branch: 0.9971
+      products:
+        - PU239
+      type: ad
+  - decay:
+      branch: 0.0029
+      products:
+        - AM243
+      type: ec
+  - decay:
+      branch: 5.30000e-11
+      products:
+        - LFP41
+      type: sf
 CM244:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM243
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CM245
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - PU240
-    type: ad
-- decay:
-    branch: 1.340741e-06
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM243
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM245
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - PU240
+      type: ad
+  - decay:
+      branch: 1.340741e-06
+      products:
+        - LFP41
+      type: sf
 CM245:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM244
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CM246
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - PU241
-    type: ad
-- decay:
-    branch: 6.10000e-09
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM244
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM246
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - PU241
+      type: ad
+  - decay:
+      branch: 6.10000e-09
+      products:
+        - LFP41
+      type: sf
 CM246:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM245
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CM247
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - PU242
-    type: ad
-- decay:
-    branch: 2.61500e-04
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM245
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM247
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - PU242
+      type: ad
+  - decay:
+      branch: 2.61500e-04
+      products:
+        - LFP41
+      type: sf
 CM247:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM246
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - CM248
-    - DUMP2
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - AM243
-    type: ad
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM246
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM248
+        - DUMP2
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - AM243
+      type: ad
 CM248:
-- transmutation:
-    branch: 1.0
-    products:
-    - CM247
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - BK249
-    type: nGamma
-- decay:
-    branch: 0.9161
-    products:
-    - DUMP2
-    type: ad
-- decay:
-    branch: 8.39000e-02
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - CM247
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - BK249
+      type: nGamma
+  - decay:
+      branch: 0.9161
+      products:
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 8.39000e-02
+      products:
+        - LFP41
+      type: sf
 H3:
-- decay:
-    branch: 1.0
-    products:
-    - HE3
-    - DUMP1
-    type: bmd
+  - decay:
+      branch: 1.0
+      products:
+        - HE3
+        - DUMP1
+      type: bmd
 HE3:
-- transmutation:
-    branch: 1.0
-    products:
-    - HE4
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - H3
-    type: np
+  - transmutation:
+      branch: 1.0
+      products:
+        - HE4
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - H3
+      type: np
 HE4: []
 IN113:
-- transmutation:
-    branch: 0.995
-    products:
-    - SN114
-    - DUMP1
-    type: nGamma
-- transmutation:
-    branch: 0.005
-    products:
-    - CD114
-    - DUMP1
-    type: nGamma
+  - transmutation:
+      branch: 0.995
+      products:
+        - SN114
+        - DUMP1
+      type: nGamma
+  - transmutation:
+      branch: 0.005
+      products:
+        - CD114
+        - DUMP1
+      type: nGamma
 IN115:
-- transmutation:
-    branch: 0.9997
-    products:
-    - SN116
-    - DUMP1
-    type: nGamma
-- transmutation:
-    branch: 0.0003
-    products:
-    - CD116
-    - DUMP1
-    type: nGamma
+  - transmutation:
+      branch: 0.9997
+      products:
+        - SN116
+        - DUMP1
+      type: nGamma
+  - transmutation:
+      branch: 0.0003
+      products:
+        - CD116
+        - DUMP1
+      type: nGamma
 LI6:
-- transmutation:
-    branch: 1.0
-    products:
-    - LI7
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - HE4
-    - DUMP1
-    type: nt
+  - transmutation:
+      branch: 1.0
+      products:
+        - LI7
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - HE4
+        - DUMP1
+      type: nt
 LI7:
-# LI7 n,gammas to Be8 which splits into two alphas, so we model both here by setting the productParticle to HE4
-- transmutation:
-    branch: 1.0
-    products:
-    - HE4
-    - DUMP1
-    type: nGamma
-    productParticle: HE4
-- transmutation:
-    branch: 1.0
-    products:
-    - LI6
-    type: n2n
+  # LI7 n,gammas to Be8 which splits into two alphas, so we model both here by setting the productParticle to HE4
+  - transmutation:
+      branch: 1.0
+      products:
+        - HE4
+        - DUMP1
+      type: nGamma
+      productParticle: HE4
+  - transmutation:
+      branch: 1.0
+      products:
+        - LI6
+      type: n2n
 NP237:
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP38
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.2500e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - NP238
-    - PU238
-    type: nGamma
-- transmutation:
-    branch: 0.346
-    products:
-    - PU236
-    type: n2n
-- transmutation:
-    branch: 0.374
-    products:
-    - U236
-    type: n2n
-- transmutation:
-    branch: 0.28
-    products:
-    - DUMP2
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - PA233
-    - DUMP2
-    type: ad
-- decay:
-    branch: 2.139954e-12
-    products:
-    - DUMP1
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP38
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.2500e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP238
+        - PU238
+      type: nGamma
+  - transmutation:
+      branch: 0.346
+      products:
+        - PU236
+      type: n2n
+  - transmutation:
+      branch: 0.374
+      products:
+        - U236
+      type: n2n
+  - transmutation:
+      branch: 0.28
+      products:
+        - DUMP2
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - PA233
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 2.139954e-12
+      products:
+        - DUMP1
+      type: sf
 NP238:
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP38
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - NP239
-    - PU239
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - NP237
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - PU238
-    type: bmd
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP38
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP239
+        - PU239
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP237
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - PU238
+      type: bmd
 PA231:
-- transmutation:
-    branch: 1.0
-    products:
-    - U232
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - U232
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: n2n
 PA233:
-- transmutation:
-    branch: 1.0
-    products:
-    - U234
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - U233
-    type: bmd
+  - transmutation:
+      branch: 1.0
+      products:
+        - U234
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - U233
+      type: bmd
 PU236:
-- transmutation:
-    branch: 1.0
-    products:
-    - NP237
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - U232
-    - DUMP2
-    type: ad
-- decay:
-    branch: 1.90000e-09
-    products:
-    - LFP38
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP237
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - U232
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 1.90000e-09
+      products:
+        - LFP38
+      type: sf
 PU238:
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP38
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - PU239
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - NP237
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - U234
-    type: ad
-- decay:
-    branch: 1.838574e-09
-    products:
-    - LFP38
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP38
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU239
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP237
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - U234
+      type: ad
+  - decay:
+      branch: 1.838574e-09
+      products:
+        - LFP38
+      type: sf
 PU239:
-- transmutation:
-    branch: 1.0
-    products:
-    - PU238
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP39
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.4200e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - PU240
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - U235
-    type: ad
-- decay:
-    branch: 4.399635e-12
-    products:
-    - LFP39
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU238
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP39
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.4200e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU240
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - U235
+      type: ad
+  - decay:
+      branch: 4.399635e-12
+      products:
+        - LFP39
+      type: sf
 PU240:
-- transmutation:
-    branch: 1.0
-    products:
-    - PU239
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP40
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.9179e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - PU241
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - U236
-    type: ad
-- decay:
-    branch: 5.656034e-08
-    products:
-    - LFP40
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU239
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP40
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.9179e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU241
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - U236
+      type: ad
+  - decay:
+      branch: 5.656034e-08
+      products:
+        - LFP40
+      type: sf
 PU241:
-- transmutation:
-    branch: 1.0
-    products:
-    - PU240
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.4100e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - PU242
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - AM241
-    type: bmd
-- decay:
-    branch: 5.729878e-15
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU240
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.4100e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU242
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - AM241
+      type: bmd
+  - decay:
+      branch: 5.729878e-15
+      products:
+        - LFP41
+      type: sf
 PU242:
-- transmutation:
-    branch: 1.0
-    products:
-    - PU241
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP41
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.6348e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - AM243
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - U238
-    type: ad
-- decay:
-    branch: 5.482456e-06
-    products:
-    - LFP41
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU241
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP41
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.6348e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - AM243
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - U238
+      type: ad
+  - decay:
+      branch: 5.482456e-06
+      products:
+        - LFP41
+      type: sf
 TH232:
-- transmutation:
-    branch: 1.0
-    products:
-    - PA233
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - PA231
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: ad
-- decay:
-    branch: 1.410000e-11
-    products:
-    - LFP35
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - PA233
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - PA231
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 1.410000e-11
+      products:
+        - LFP35
+      type: sf
 U232:
-- transmutation:
-    branch: 1.0
-    products:
-    - U233
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - PA231
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: ad
-- decay:
-    branch: 8.612316e-13
-    products:
-    - LFP35
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - U233
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - PA231
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 8.612316e-13
+      products:
+        - LFP35
+      type: sf
 U233:
-- transmutation:
-    branch: 1.0
-    products:
-    - U234
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.1400e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - U232
-    type: n2n
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: ad
-- decay:
-    branch: 1.326638e-12
-    products:
-    - LFP35
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - U234
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.1400e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - U232
+      type: n2n
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 1.326638e-12
+      products:
+        - LFP35
+      type: sf
 U234:
-- transmutation:
-    branch: 1.0
-    products:
-    - U233
-    - DUMP2
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.5925e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - U235
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: ad
-- decay:
-    branch: 1.169048e-11
-    products:
-    - LFP35
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - U233
+        - DUMP2
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.5925e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - U235
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 1.169048e-11
+      products:
+        - LFP35
+      type: sf
 U235:
-- transmutation:
-    branch: 1.0
-    products:
-    - U234
-    - DUMP2
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.0800e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - U236
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: ad
-- decay:
-    branch: 2.011429e-09
-    products:
-    - LFP35
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - U234
+        - DUMP2
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.0800e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - U236
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 2.011429e-09
+      products:
+        - LFP35
+      type: sf
 U236:
-- transmutation:
-    branch: 1.0
-    products:
-    - U235
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - NP237
-    type: nGamma
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP35
-    type: fission
-- transmutation:
-    branch: 1.3094e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: ad
-- decay:
-    branch: 1.201026e-09
-    products:
-    - LFP35
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - U235
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP237
+      type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP35
+      type: fission
+  - transmutation:
+      branch: 1.3094e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: ad
+  - decay:
+      branch: 1.201026e-09
+      products:
+        - LFP35
+      type: sf
 U238:
-- transmutation:
-    branch: 1.0
-    products:
-    - NP237
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP38
-    type: fission
-# add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
-- transmutation:
-    branch: 1.0262e-04
-    products:
-    - H3
-    - DUMP1
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - NP239
-    - PU239
-    type: nGamma
-- decay:
-    branch: 5.448780e-07
-    products:
-    - LFP38
-    type: sf
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP237
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP38
+      type: fission
+  # add tritium from ternary fission from JEFF3.1.1 on top of the LFPs (400 keV)
+  - transmutation:
+      branch: 1.0262e-04
+      products:
+        - H3
+        - DUMP1
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP239
+        - PU239
+      type: nGamma
+  - decay:
+      branch: 5.448780e-07
+      products:
+        - LFP38
+      type: sf
 NP239:
-- transmutation:
-    branch: 1.0
-    products:
-    - NP238
-    type: n2n
-- transmutation:
-    branch: 1.0
-    products:
-    - LFP38
-    type: fission
-- transmutation:
-    branch: 1.0
-    products:
-    - PU240
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - PU239
-    type: bmd
+  - transmutation:
+      branch: 1.0
+      products:
+        - NP238
+      type: n2n
+  - transmutation:
+      branch: 1.0
+      products:
+        - LFP38
+      type: fission
+  - transmutation:
+      branch: 1.0
+      products:
+        - PU240
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - PU239
+      type: bmd
 Y89:
-- transmutation:
-    branch: 1.0
-    products:
-    - SR89
-    type: np
+  - transmutation:
+      branch: 1.0
+      products:
+        - SR89
+      type: np
 SR89:
-- transmutation:
-    branch: 1.0
-    products:
-    - SR90
-    type: nGamma
-- decay:
-    branch: 1.0
-    products:
-    - Y89
-    type: bmd
+  - transmutation:
+      branch: 1.0
+      products:
+        - SR90
+      type: nGamma
+  - decay:
+      branch: 1.0
+      products:
+        - Y89
+      type: bmd
 SR90:
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: bmd
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: bmd
 S32:
-- transmutation:
-    branch: 1.0
-    products:
-    - P32
-    type: np
-- transmutation:
-    branch: 1.0
-    products:
-    - S33
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - P32
+      type: np
+  - transmutation:
+      branch: 1.0
+      products:
+        - S33
+      type: nGamma
 P32:
-- decay:
-    branch: 1.0
-    products:
-    - S32
-    type: bmd
+  - decay:
+      branch: 1.0
+      products:
+        - S32
+      type: bmd
 S33:
-- transmutation:
-    branch: 1.0
-    products:
-    - S34
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - S34
+      type: nGamma
 S34:
-- transmutation:
-    branch: 1.0
-    products:
-    - S35
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - S35
+      type: nGamma
 S35:
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: bmd
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: bmd
 S36:
-- transmutation:
-    branch: 1.0
-    products:
-    - S37
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - S37
+      type: nGamma
 S37:
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: bmd
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: bmd
 TI46:
-- transmutation:
-    branch: 1.0
-    products:
-    - TI47
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - TI47
+      type: nGamma
 TI47:
-- transmutation:
-    branch: 1.0
-    products:
-    - SC47
-    type: np
-- transmutation:
-    branch: 1.0
-    products:
-    - TI48
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - SC47
+      type: np
+  - transmutation:
+      branch: 1.0
+      products:
+        - TI48
+      type: nGamma
 SC47:
-- decay:
-    branch: 1.0
-    products:
-    - TI47
-    type: bmd
+  - decay:
+      branch: 1.0
+      products:
+        - TI47
+      type: bmd
 TI48:
-- transmutation:
-    branch: 1.0
-    products:
-    - TI49
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - TI49
+      type: nGamma
 TI49:
-- transmutation:
-    branch: 1.0
-    products:
-    - TI50
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - TI50
+      type: nGamma
 TI50:
-- transmutation:
-    branch: 1.0
-    products:
-    - TI51
-    type: nGamma
+  - transmutation:
+      branch: 1.0
+      products:
+        - TI51
+      type: nGamma
 TI51:
-- decay:
-    branch: 1.0
-    products:
-    - DUMP2
-    type: bmd
+  - decay:
+      branch: 1.0
+      products:
+        - DUMP2
+      type: bmd
diff --git a/armi/resources/mcc-nuclides.yaml b/armi/resources/mcc-nuclides.yaml
index 8ba519a0..a4d68fdb 100644
--- a/armi/resources/mcc-nuclides.yaml
+++ b/armi/resources/mcc-nuclides.yaml
@@ -2,7 +2,7 @@
 # codes. The MC2-2 code base uses ENDF/B-V.2 and the MC2-3 code base uses
 # ENDF/B-VII.0. This file can be amended in the future for MC2-3 as the
 # code base changes, but the nuclides that MC2-3 models are consistent with
-# the data that is supplied by ENDF/B-VII.0. See: Appendix B of ANL/NE-11/41 Rev.3 
+# the data that is supplied by ENDF/B-VII.0. See: Appendix B of ANL/NE-11/41 Rev.3
 # Public Link: https://publications.anl.gov/anlpubs/2018/10/147840.pdf.
 AC225:
   ENDF/B-V.2: null
diff --git a/doc/release/0.4.rst b/doc/release/0.4.rst
index c61c6079..2b69760a 100644
--- a/doc/release/0.4.rst
+++ b/doc/release/0.4.rst
@@ -16,6 +16,8 @@ New Features
 API Changes
 -----------
 #. Removing flags ``CORE`` and ``REACTOR``. (`PR#1835 <https://github.com/terrapower/armi/pull/1835>`_)
+#. Removing deprecated method ``prepSearch``. (`PR#1845 <https://github.com/terrapower/armi/pull/1845>`_)
+#. Removing unused function ``SkippingXsGen_BuChangedLessThanTolerance``. (`PR#1845 <https://github.com/terrapower/armi/pull/1845>`_)
 #. Allow for unknown Flags when opening a DB. (`PR#1844 <https://github.com/terrapower/armi/pull/1835>`_)
 #. TBD
 


Test patch:
diff --git a/armi/bookkeeping/db/tests/test_databaseInterface.py b/armi/bookkeeping/db/tests/test_databaseInterface.py
index 0819a400..664ed193 100644
--- a/armi/bookkeeping/db/tests/test_databaseInterface.py
+++ b/armi/bookkeeping/db/tests/test_databaseInterface.py
@@ -77,6 +77,31 @@ class MockInterface(interfaces.Interface):
         self.action(cycle, node)
 
 
+class TestDatabaseInterfaceBOL(unittest.TestCase):
+    """Test the DatabaseInterface class at the BOL."""
+
+    def test_interactBOL(self):
+        """This test is in its own class, because of temporary directory issues."""
+        with directoryChangers.TemporaryDirectoryChanger():
+            self.o, self.r = loadTestReactor(
+                TEST_ROOT, inputFileName="smallestTestReactor/armiRunSmallest.yaml"
+            )
+            self.dbi = DatabaseInterface(self.r, self.o.cs)
+
+            dbName = f"{self._testMethodName}.h5"
+            self.dbi.initDB(fName=dbName)
+            self.db: Database3 = self.dbi.database
+            self.stateRetainer = self.r.retainState().__enter__()
+            self.assertIsNotNone(self.dbi._db)
+            self.dbi.interactBOL()
+            self.dbi.closeDB()
+            self.dbi._db = None
+            self.assertIsNone(self.dbi._db)
+
+            if os.path.exists(dbName):
+                os.remove(dbName)
+
+
 class TestDatabaseInterface(unittest.TestCase):
     """Tests for the DatabaseInterface class."""
 
@@ -105,15 +130,6 @@ class TestDatabaseInterface(unittest.TestCase):
             if os.path.exists(dirt):
                 os.remove(dirt)
 
-    def test_interactBOL(self):
-        self.assertIsNotNone(self.dbi._db)
-        self.dbi.interactBOL()
-
-        self.dbi._db = None
-        self.assertIsNone(self.dbi._db)
-        self.dbi.interactBOL()
-        self.assertIsNotNone(self.dbi._db)
-
     def test_distributable(self):
         self.assertEqual(self.dbi.distributable(), 4)
         self.dbi.interactDistributeState()
diff --git a/armi/physics/fuelCycle/tests/test_fuelHandlers.py b/armi/physics/fuelCycle/tests/test_fuelHandlers.py
index 2d8fbd30..dd3cd843 100644
--- a/armi/physics/fuelCycle/tests/test_fuelHandlers.py
+++ b/armi/physics/fuelCycle/tests/test_fuelHandlers.py
@@ -154,6 +154,15 @@ class MockXSGM(CrossSectionGroupManager):
 
 
 class TestFuelHandler(FuelHandlerTestHelper):
+    def test_getParamMax(self):
+        a = self.assembly
+
+        res = fuelHandlers.FuelHandler._getParamMax(a, "kInf", True)
+        self.assertEqual(res, 0.0)
+
+        res = fuelHandlers.FuelHandler._getParamMax(a, "kInf", False)
+        self.assertEqual(res, 0.0)
+
     def test_interactBOC(self):
         # set up mock interface
         self.o.addInterface(MockLatticePhysicsInterface(self.r, self.o.cs))
@@ -212,6 +221,18 @@ class TestFuelHandler(FuelHandlerTestHelper):
         fh.outage(factor=1.0)
         self.assertEqual(len(fh.moved), 0)
 
+    def test_outageEdgeCase(self):
+        class MockFH(fuelHandlers.FuelHandler):
+            def chooseSwaps(self, factor=1.0):
+                self.moved = [None]
+
+        # mock up a fuel handler
+        fh = MockFH(self.o)
+
+        # test edge case
+        with self.assertRaises(AttributeError):
+            fh.outage(factor=1.0)
+
     def test_isAssemblyInAZone(self):
         # build a fuel handler
         fh = fuelHandlers.FuelHandler(self.o)
@@ -404,8 +425,7 @@ class TestFuelHandler(FuelHandlerTestHelper):
         expected = lastB.parent
         self.assertIs(assem, expected)
 
-        # test the impossible: an block with burnup less than
-        # 110% of its own burnup
+        # test the impossible: an block with burnup less than 110% of its own burnup
         assem = fh.findAssembly(
             param="percentBu",
             compareTo=100,
diff --git a/armi/physics/neutronics/latticePhysics/tests/test_latticeInterface.py b/armi/physics/neutronics/latticePhysics/tests/test_latticeInterface.py
index fdf3a102..c8b6ed32 100644
--- a/armi/physics/neutronics/latticePhysics/tests/test_latticeInterface.py
+++ b/armi/physics/neutronics/latticePhysics/tests/test_latticeInterface.py
@@ -209,6 +209,9 @@ class TestLatticePhysicsInterface(TestLatticePhysicsInterfaceBase):
         self.latticeInterface.interactCoupled(iteration=1)
         self.assertIsNone(self.o.r.core.lib)
 
+    def test_getSuffix(self):
+        self.assertEqual(self.latticeInterface._getSuffix(7), "")
+
 
 class TestLatticePhysicsLibraryCreation(TestLatticePhysicsInterfaceBase):
     """Test variations of _newLibraryShouldBeCreated."""
diff --git a/armi/physics/neutronics/latticePhysics/tests/test_latticeWriter.py b/armi/physics/neutronics/latticePhysics/tests/test_latticeWriter.py
index 7c40eca1..f7f1f8e2 100644
--- a/armi/physics/neutronics/latticePhysics/tests/test_latticeWriter.py
+++ b/armi/physics/neutronics/latticePhysics/tests/test_latticeWriter.py
@@ -20,6 +20,9 @@ from armi.physics.neutronics.const import CONF_CROSS_SECTION
 from armi.physics.neutronics.fissionProductModel.fissionProductModelSettings import (
     CONF_FP_MODEL,
 )
+from armi.physics.neutronics.latticePhysics.latticePhysicsInterface import (
+    setBlockNeutronVelocities,
+)
 from armi.physics.neutronics.latticePhysics.latticePhysicsWriter import (
     LatticePhysicsWriter,
 )
@@ -66,6 +69,13 @@ class TestLatticePhysicsWriter(unittest.TestCase):
         self.block = self.r.core.getFirstBlock()
         self.w = FakeLatticePhysicsWriter(self.block, self.r, self.o)
 
+    def test_setBlockNeutronVelocities(self):
+        d = defaultdict(float)
+        d["AA"] = 10.0
+        setBlockNeutronVelocities(self.r, d)
+        tot = sum([b.p.mgNeutronVelocity for b in self.r.core.getBlocks()])
+        self.assertGreater(tot, 3000.0)
+
     def test_latticePhysicsWriter(self):
         """Super basic test of the LatticePhysicsWriter."""
         self.assertEqual(self.w.xsId, "AA")
diff --git a/armi/physics/neutronics/tests/test_crossSectionManager.py b/armi/physics/neutronics/tests/test_crossSectionManager.py
index 2437420a..80b5cac0 100644
--- a/armi/physics/neutronics/tests/test_crossSectionManager.py
+++ b/armi/physics/neutronics/tests/test_crossSectionManager.py
@@ -701,6 +701,16 @@ class TestCrossSectionGroupManager(unittest.TestCase):
         self.csm._setBuGroupBounds([3, 10, 30, 100])
         self.csm.interactBOL()
 
+    def test_enableBuGroupUpdates(self):
+        self.csm._buGroupUpdatesEnabled = False
+        self.csm.enableBuGroupUpdates()
+        self.assertTrue(self.csm.enableBuGroupUpdates)
+
+    def test_disableBuGroupUpdates(self):
+        self.csm._buGroupUpdatesEnabled = False
+        res = self.csm.disableBuGroupUpdates()
+        self.assertFalse(res)
+
     def test_updateBurnupGroups(self):
         self.blockList[1].p.percentBu = 3.1
         self.blockList[2].p.percentBu = 10.0
diff --git a/armi/tests/1DslabXSByCompTest.yaml b/armi/tests/1DslabXSByCompTest.yaml
index 0ea6d2b0..ce9cf6e8 100644
--- a/armi/tests/1DslabXSByCompTest.yaml
+++ b/armi/tests/1DslabXSByCompTest.yaml
@@ -1,187 +1,216 @@
 nuclide flags:
-    NA23: {burn: false, xs: true}
-    FE: {burn: false, xs: true}
-    U235: {burn: false, xs: true}
-    U238: {burn: false, xs: true}
-    PU239: {burn: false, xs: true}
-    PU240: {burn: false, xs: true}
-    PU241: {burn: false, xs: true}
+  NA23: {burn: false, xs: true}
+  FE: {burn: false, xs: true}
+  U235: {burn: false, xs: true}
+  U238: {burn: false, xs: true}
+  PU239: {burn: false, xs: true}
+  PU240: {burn: false, xs: true}
+  PU241: {burn: false, xs: true}
 custom isotopics:
-    eUranium:
-        input format: number densities
-        U235: 0.025
-        U238: 0.02
-    PuUranium:
-        input format: number densities
-        PU239: 0.02
-        PU240: 0.0075
-        PU241: 0.0025
-        U238: 0.015
-    depletedUranium:
-        input format: number densities
-        U238: 0.045
-    sodium:
-        input format: number densities
-        NA23: 0.02
-    structuralSteel:
-        input format: number densities
-        FE: 0.07
-    eUraniumHalf:
-        input format: number densities
-        U235: 0.0125
-        U238: 0.01
+  eUranium:
+    input format: number densities
+    U235: 0.025
+    U238: 0.02
+  PuUranium:
+    input format: number densities
+    PU239: 0.02
+    PU240: 0.0075
+    PU241: 0.0025
+    U238: 0.015
+  depletedUranium:
+    input format: number densities
+    U238: 0.045
+  sodium:
+    input format: number densities
+    NA23: 0.02
+  structuralSteel:
+    input format: number densities
+    FE: 0.07
+  eUraniumHalf:
+    input format: number densities
+    U235: 0.0125
+    U238: 0.01
 blocks:
-    eu fuel block: &block_eufuelblock
-        depleted_uranium: &component_eufuelblock_depleted_uranium
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: depletedUranium
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 1.0
-        enriched_uranium fuel:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: eUranium
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 2.0
-        sodium: &component_eufuelblock_sodium
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: sodium
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 1.0
-        iron: &component_eufuelblock_iron
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: structuralSteel
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 4.0
-        latticeboundarycell: &component_eufuelblock_latticeboundarycell
-            shape: Rectangle
-            material: Void
-            Tinput: 20.0
-            Thot: 20.0
-            lengthInner: 1.0
-            lengthOuter: 1.0
-            mult: 1.0
-            widthInner: 8.0
-            widthOuter: 8.0
-    reversedeu fuel block: &block_reversedeufuelblock
-        iron: *component_eufuelblock_iron
-        sodium: *component_eufuelblock_sodium
-        enriched_uranium fuel:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: eUraniumHalf
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 2.0
-        depleted_uranium: *component_eufuelblock_depleted_uranium
-        latticeboundarycell: *component_eufuelblock_latticeboundarycell
-    inheritseublocks: &block_inheritseublocks
-        sodium:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: sodium
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 0.5
-        pu(fuel):
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: PuUranium
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 3.0
-        iron:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: structuralSteel
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 1.0
-        pu(fuel)2:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: PuUranium
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 0.5
-        iron2:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: structuralSteel
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 3.0
-        latticeboundarycell: *component_eufuelblock_latticeboundarycell
-    blanket fuel block: &block_blanketfuelblock
-        depleted_uranium fuel 1: *component_eufuelblock_depleted_uranium
-        sodium:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: sodium
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 6.0
-        depleted_uranium(fuel)2: *component_eufuelblock_depleted_uranium
-        latticeboundarycell: *component_eufuelblock_latticeboundarycell
-    reflectorblockinheritsblanket: &block_reflectorblockinheritsblanket
-        iron:
-            shape: SolidRectangle
-            material: Custom
-            Tinput: 20.0
-            Thot: 20.0
-            isotopics: structuralSteel
-            lengthOuter: 1.0
-            mult: 1.0
-            widthOuter: 8.0
-        latticeboundarycell: *component_eufuelblock_latticeboundarycell
+  eu fuel block: &block_eufuelblock
+    depleted_uranium: &component_eufuelblock_depleted_uranium
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: depletedUranium
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 1.0
+    enriched_uranium fuel:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: eUranium
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 2.0
+    sodium: &component_eufuelblock_sodium
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: sodium
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 1.0
+    iron: &component_eufuelblock_iron
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: structuralSteel
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 4.0
+    latticeboundarycell: &component_eufuelblock_latticeboundarycell
+      shape: Rectangle
+      material: Void
+      Tinput: 20.0
+      Thot: 20.0
+      lengthInner: 1.0
+      lengthOuter: 1.0
+      mult: 1.0
+      widthInner: 8.0
+      widthOuter: 8.0
+  reversedeu fuel block: &block_reversedeufuelblock
+    iron: *component_eufuelblock_iron
+    sodium: *component_eufuelblock_sodium
+    enriched_uranium fuel:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: eUraniumHalf
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 2.0
+    depleted_uranium: *component_eufuelblock_depleted_uranium
+    latticeboundarycell: *component_eufuelblock_latticeboundarycell
+  inheritseublocks: &block_inheritseublocks
+    sodium:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: sodium
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 0.5
+    pu(fuel):
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: PuUranium
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 3.0
+    iron:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: structuralSteel
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 1.0
+    pu(fuel)2:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: PuUranium
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 0.5
+    iron2:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: structuralSteel
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 3.0
+    latticeboundarycell: *component_eufuelblock_latticeboundarycell
+  blanket fuel block: &block_blanketfuelblock
+    depleted_uranium fuel 1: *component_eufuelblock_depleted_uranium
+    sodium:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: sodium
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 6.0
+    depleted_uranium(fuel)2: *component_eufuelblock_depleted_uranium
+    latticeboundarycell: *component_eufuelblock_latticeboundarycell
+  reflectorblockinheritsblanket: &block_reflectorblockinheritsblanket
+    iron:
+      shape: SolidRectangle
+      material: Custom
+      Tinput: 20.0
+      Thot: 20.0
+      isotopics: structuralSteel
+      lengthOuter: 1.0
+      mult: 1.0
+      widthOuter: 8.0
+    latticeboundarycell: *component_eufuelblock_latticeboundarycell
 assemblies:
-    heights: &standard_heights [10.0, 30.0, 30.0, 15.0, 15.0, 30.0, 30.0, 10.0]
-    axial mesh points: &standard_axial_mesh_points [1, 2, 2, 1, 1, 2, 2, 1]
-    feed fuel:
-        specifier: DrawerSet1
-        blocks: [*block_reflectorblockinheritsblanket, *block_blanketfuelblock, *block_eufuelblock, *block_inheritseublocks, *block_reversedeufuelblock, *block_eufuelblock, *block_blanketfuelblock, *block_reflectorblockinheritsblanket]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: &feed_fuel_xs_types [AZ, AZ, AA, AA, AA, AA, AZ, AZ]
-    drawerset2:
-        specifier: DrawerSet2
-        blocks: [*block_reflectorblockinheritsblanket, *block_blanketfuelblock, *block_inheritseublocks, *block_eufuelblock, *block_reversedeufuelblock, *block_reversedeufuelblock, *block_blanketfuelblock,
-            *block_reflectorblockinheritsblanket]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: *feed_fuel_xs_types
-    NotInCoreButGetBlocks:
-        specifier: NotInCore
-        blocks: [*block_reflectorblockinheritsblanket, *block_blanketfuelblock, *block_eufuelblock, *block_inheritseublocks, *block_reversedeufuelblock, *block_eufuelblock, *block_blanketfuelblock, *block_reflectorblockinheritsblanket]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: [AZ, AZ, AC, AC, AC, AC, AZ, AZ]
+  heights: &standard_heights [10.0, 30.0, 30.0, 15.0, 15.0, 30.0, 30.0, 10.0]
+  axial mesh points: &standard_axial_mesh_points [1, 2, 2, 1, 1, 2, 2, 1]
+  feed fuel:
+    specifier: DrawerSet1
+    blocks:
+      [
+        *block_reflectorblockinheritsblanket,
+        *block_blanketfuelblock,
+        *block_eufuelblock,
+        *block_inheritseublocks,
+        *block_reversedeufuelblock,
+        *block_eufuelblock,
+        *block_blanketfuelblock,
+        *block_reflectorblockinheritsblanket,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: &feed_fuel_xs_types [AZ, AZ, AA, AA, AA, AA, AZ, AZ]
+  drawerset2:
+    specifier: DrawerSet2
+    blocks:
+      [
+        *block_reflectorblockinheritsblanket,
+        *block_blanketfuelblock,
+        *block_inheritseublocks,
+        *block_eufuelblock,
+        *block_reversedeufuelblock,
+        *block_reversedeufuelblock,
+        *block_blanketfuelblock,
+        *block_reflectorblockinheritsblanket,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: *feed_fuel_xs_types
+  NotInCoreButGetBlocks:
+    specifier: NotInCore
+    blocks:
+      [
+        *block_reflectorblockinheritsblanket,
+        *block_blanketfuelblock,
+        *block_eufuelblock,
+        *block_inheritseublocks,
+        *block_reversedeufuelblock,
+        *block_eufuelblock,
+        *block_blanketfuelblock,
+        *block_reflectorblockinheritsblanket,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: [AZ, AZ, AC, AC, AC, AC, AZ, AZ]
diff --git a/armi/tests/Godiva-blueprints.yaml b/armi/tests/Godiva-blueprints.yaml
index 519725dd..272337d4 100644
--- a/armi/tests/Godiva-blueprints.yaml
+++ b/armi/tests/Godiva-blueprints.yaml
@@ -1,450 +1,450 @@
 nuclide flags:
-  PU237: {burn: false,  xs: true, expandTo: []}
-  PU240: {burn: false,  xs: true, expandTo: []}
-  PU241: {burn: false,  xs: true, expandTo: []}
-  AR: {burn: false,  xs: true, expandTo: []}
-  PA233: {burn: false,  xs: true, expandTo: []}
-  NP238: {burn: false,  xs: true, expandTo: []}
-  AR36: {burn: false,  xs: true, expandTo: []}
-  TH230: {burn: false,  xs: true, expandTo: []}
-  AR38: {burn: false,  xs: true, expandTo: []}
-  U238: {burn: false,  xs: true, expandTo: []}
-  U239: {burn: false,  xs: true, expandTo: []}
-  C: {burn: false,  xs: true, expandTo: []}
-  LFP35: {burn: false,  xs: true, expandTo: []}
-  U233: {burn: false,  xs: true, expandTo: []}
-  U234: {burn: false,  xs: true, expandTo: []}
-  U235: {burn: false,  xs: true, expandTo: []}
-  U236: {burn: false,  xs: true, expandTo: []}
-  U237: {burn: false,  xs: true, expandTo: []}
-  PU239: {burn: false,  xs: true, expandTo: []}
-  PU238: {burn: false,  xs: true, expandTo: []}
-  TH234: {burn: false,  xs: true, expandTo: []}
-  TH232: {burn: false,  xs: true, expandTo: []}
-  AR40: {burn: false,  xs: true, expandTo: []}
-  LFP39: {burn: false,  xs: true, expandTo: []}
-  DUMP2: {burn: false,  xs: true, expandTo: []}
-  LFP41: {burn: false,  xs: true, expandTo: []}
-  LFP40: {burn: false,  xs: true, expandTo: []}
-  PU242: {burn: false,  xs: true, expandTo: []}
-  PU236: {burn: false,  xs: true, expandTo: []}
-  U232: {burn: false,  xs: true, expandTo: []}
-  DUMP1: {burn: false,  xs: true, expandTo: []}
-  LFP38: {burn: false,  xs: true, expandTo: []}
-  AM243: {burn: false,  xs: true, expandTo: []}
-  PA231: {burn: false,  xs: true, expandTo: []}
-  CM244: {burn: false,  xs: true, expandTo: []}
-  CM242: {burn: false,  xs: true, expandTo: []}
-  AM242: {burn: false,  xs: true, expandTo: []}
-  CM245: {burn: false,  xs: true, expandTo: []}
-  CM243: {burn: false,  xs: true, expandTo: []}
-  CM246: {burn: false,  xs: true, expandTo: []}
-  CM247: {burn: false,  xs: true, expandTo: []}
+  PU237: {burn: false, xs: true, expandTo: []}
+  PU240: {burn: false, xs: true, expandTo: []}
+  PU241: {burn: false, xs: true, expandTo: []}
+  AR: {burn: false, xs: true, expandTo: []}
+  PA233: {burn: false, xs: true, expandTo: []}
+  NP238: {burn: false, xs: true, expandTo: []}
+  AR36: {burn: false, xs: true, expandTo: []}
+  TH230: {burn: false, xs: true, expandTo: []}
+  AR38: {burn: false, xs: true, expandTo: []}
+  U238: {burn: false, xs: true, expandTo: []}
+  U239: {burn: false, xs: true, expandTo: []}
+  C: {burn: false, xs: true, expandTo: []}
+  LFP35: {burn: false, xs: true, expandTo: []}
+  U233: {burn: false, xs: true, expandTo: []}
+  U234: {burn: false, xs: true, expandTo: []}
+  U235: {burn: false, xs: true, expandTo: []}
+  U236: {burn: false, xs: true, expandTo: []}
+  U237: {burn: false, xs: true, expandTo: []}
+  PU239: {burn: false, xs: true, expandTo: []}
+  PU238: {burn: false, xs: true, expandTo: []}
+  TH234: {burn: false, xs: true, expandTo: []}
+  TH232: {burn: false, xs: true, expandTo: []}
+  AR40: {burn: false, xs: true, expandTo: []}
+  LFP39: {burn: false, xs: true, expandTo: []}
+  DUMP2: {burn: false, xs: true, expandTo: []}
+  LFP41: {burn: false, xs: true, expandTo: []}
+  LFP40: {burn: false, xs: true, expandTo: []}
+  PU242: {burn: false, xs: true, expandTo: []}
+  PU236: {burn: false, xs: true, expandTo: []}
+  U232: {burn: false, xs: true, expandTo: []}
+  DUMP1: {burn: false, xs: true, expandTo: []}
+  LFP38: {burn: false, xs: true, expandTo: []}
+  AM243: {burn: false, xs: true, expandTo: []}
+  PA231: {burn: false, xs: true, expandTo: []}
+  CM244: {burn: false, xs: true, expandTo: []}
+  CM242: {burn: false, xs: true, expandTo: []}
+  AM242: {burn: false, xs: true, expandTo: []}
+  CM245: {burn: false, xs: true, expandTo: []}
+  CM243: {burn: false, xs: true, expandTo: []}
+  CM246: {burn: false, xs: true, expandTo: []}
+  CM247: {burn: false, xs: true, expandTo: []}
   O: {burn: false, xs: true, expandTo: [O16]}
   N: {burn: false, xs: true, expandTo: [N14]}
-  ZR: {burn: false,  xs: true, expandTo: []}
+  ZR: {burn: false, xs: true, expandTo: []}
 custom isotopics: {}
 blocks: {}
 assemblies:
   heights:
-  - 3.5
-  - 3.5
-  - 3.5
-  - 3.5
-  - 3.5
-  axial mesh points:
-  - 5
-  - 5
-  - 5
-  - 5
-  - 5
-  assembly1_1:
-    specifier: assembly1_1
-    blocks:
-    - name: block1_1_1
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 3.001
-        inner_radius: 0.0
-        mult: 0.9226919412612915
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 3.001
-        inner_radius: 0.0
-        mult: 0.0773080587387085
-    - name: block1_1_2
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 3.001
-        inner_radius: 0.0
-        mult: 1.0
-    - name: block1_1_3
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 3.001
-        inner_radius: 0.0
-        mult: 1.0
-    - name: block1_1_4
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 3.001
-        inner_radius: 0.0
-        mult: 1.0
-    - name: block1_1_5
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 3.001
-        inner_radius: 0.0
-        mult: 0.9271114468574524
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 3.001
-        inner_radius: 0.0
-        mult: 0.07288855314254761
-    height:
     - 3.5
     - 3.5
     - 3.5
     - 3.5
     - 3.5
-    axial mesh points:
+  axial mesh points:
     - 5
     - 5
     - 5
     - 5
     - 5
+  assembly1_1:
+    specifier: assembly1_1
+    blocks:
+      - name: block1_1_1
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 3.001
+          inner_radius: 0.0
+          mult: 0.9226919412612915
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 3.001
+          inner_radius: 0.0
+          mult: 0.0773080587387085
+      - name: block1_1_2
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 3.001
+          inner_radius: 0.0
+          mult: 1.0
+      - name: block1_1_3
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 3.001
+          inner_radius: 0.0
+          mult: 1.0
+      - name: block1_1_4
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 3.001
+          inner_radius: 0.0
+          mult: 1.0
+      - name: block1_1_5
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 3.001
+          inner_radius: 0.0
+          mult: 0.9271114468574524
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 3.001
+          inner_radius: 0.0
+          mult: 0.07288855314254761
+    height:
+      - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
+    axial mesh points:
+      - 5
+      - 5
+      - 5
+      - 5
+      - 5
     radial mesh points: 2
     azimuthal mesh points: 7
     material modifications:
       U235_wt_frac:
-      - 0.9371
-      - 0.9371
-      - 0.9371
-      - 0.9371
-      - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
       ZR_wt_frac:
-      - 0.0
-      - 0.0
-      - 0.0
-      - 0.0
-      - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
     xs types:
-    - A
-    - A
-    - A
-    - A
-    - A
+      - A
+      - A
+      - A
+      - A
+      - A
   assembly2_1:
     specifier: assembly2_1
     blocks:
-    - name: block2_1_1
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 6.002
-        inner_radius: 3.001
-        mult: 0.5954532027244568
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 6.002
-        inner_radius: 3.001
-        mult: 0.4045467972755432
-    - name: block2_1_2
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 6.002
-        inner_radius: 3.001
-        mult: 1.0
-    - name: block2_1_3
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 6.002
-        inner_radius: 3.001
-        mult: 1.0
-    - name: block2_1_4
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 6.002
-        inner_radius: 3.001
-        mult: 1.0
-    - name: block2_1_5
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 6.002
-        inner_radius: 3.001
-        mult: 0.5924441814422607
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 6.002
-        inner_radius: 3.001
-        mult: 0.40755581855773926
+      - name: block2_1_1
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 6.002
+          inner_radius: 3.001
+          mult: 0.5954532027244568
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 6.002
+          inner_radius: 3.001
+          mult: 0.4045467972755432
+      - name: block2_1_2
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 6.002
+          inner_radius: 3.001
+          mult: 1.0
+      - name: block2_1_3
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 6.002
+          inner_radius: 3.001
+          mult: 1.0
+      - name: block2_1_4
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 6.002
+          inner_radius: 3.001
+          mult: 1.0
+      - name: block2_1_5
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 6.002
+          inner_radius: 3.001
+          mult: 0.5924441814422607
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 6.002
+          inner_radius: 3.001
+          mult: 0.40755581855773926
     height:
-    - 3.5
-    - 3.5
-    - 3.5
-    - 3.5
-    - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
     axial mesh points:
-    - 5
-    - 5
-    - 5
-    - 5
-    - 5
+      - 5
+      - 5
+      - 5
+      - 5
+      - 5
     radial mesh points: 2
     azimuthal mesh points: 7
     material modifications:
       U235_wt_frac:
-      - 0.9371
-      - 0.9371
-      - 0.9371
-      - 0.9371
-      - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
       ZR_wt_frac:
-      - 0.0
-      - 0.0
-      - 0.0
-      - 0.0
-      - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
     xs types:
-    - A
-    - A
-    - A
-    - A
-    - A
+      - A
+      - A
+      - A
+      - A
+      - A
   assembly3_1:
     specifier: assembly3_1
     blocks:
-    - name: block3_1_1
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.046154800802469254
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.9538451991975307
-    - name: block3_1_2
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.6035306453704834
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.3964693546295166
-    - name: block3_1_3
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.8756284713745117
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.12437152862548828
-    - name: block3_1_4
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.5993080139160156
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.4006919860839844
-    - name: block3_1_5
-      Godiva:
-        shape: RadialSegment
-        material: UZr
-        Tinput: 26.85
-        Thot: 26.85
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.04680449143052101
-      compliment:
-        shape: RadialSegment
-        material: Air
-        Tinput: 0.0
-        Thot: 0.0
-        outer_theta: 0.7853981633974483
-        height: 3.5
-        inner_theta: 0.0
-        outer_radius: 9.0
-        inner_radius: 6.002
-        mult: 0.953195508569479
+      - name: block3_1_1
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.046154800802469254
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.9538451991975307
+      - name: block3_1_2
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.6035306453704834
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.3964693546295166
+      - name: block3_1_3
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.8756284713745117
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.12437152862548828
+      - name: block3_1_4
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.5993080139160156
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.4006919860839844
+      - name: block3_1_5
+        Godiva:
+          shape: RadialSegment
+          material: UZr
+          Tinput: 26.85
+          Thot: 26.85
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.04680449143052101
+        compliment:
+          shape: RadialSegment
+          material: Air
+          Tinput: 0.0
+          Thot: 0.0
+          outer_theta: 0.7853981633974483
+          height: 3.5
+          inner_theta: 0.0
+          outer_radius: 9.0
+          inner_radius: 6.002
+          mult: 0.953195508569479
     height:
-    - 3.5
-    - 3.5
-    - 3.5
-    - 3.5
-    - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
+      - 3.5
     axial mesh points:
-    - 5
-    - 5
-    - 5
-    - 5
-    - 5
+      - 5
+      - 5
+      - 5
+      - 5
+      - 5
     radial mesh points: 2
     azimuthal mesh points: 7
     material modifications:
       U235_wt_frac:
-      - 0.9371
-      - 0.9371
-      - 0.9371
-      - 0.9371
-      - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
+        - 0.9371
       ZR_wt_frac:
-      - 0.0
-      - 0.0
-      - 0.0
-      - 0.0
-      - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
+        - 0.0
     xs types:
-    - A
-    - A
-    - A
-    - A
-    - A
+      - A
+      - A
+      - A
+      - A
+      - A
 systems:
   core:
     grid name: core
@@ -458,20 +458,20 @@ grids:
     lattice map:
     grid bounds:
       r:
-      - 0.0
-      - 3.001
-      - 6.002
-      - 9.0
+        - 0.0
+        - 3.001
+        - 6.002
+        - 9.0
       theta:
-      - 0.0
-      - 0.7853981633974483
+        - 0.0
+        - 0.7853981633974483
       z:
-      - -8.75
-      - -5.25
-      - -1.7500000000000002
-      - 1.7500000000000002
-      - 5.25
-      - 8.75
+        - -8.75
+        - -5.25
+        - -1.7500000000000002
+        - 1.7500000000000002
+        - 5.25
+        - 8.75
     symmetry: eighth periodic
     grid contents:
       ? - 0
diff --git a/armi/tests/ThRZSettings.yaml b/armi/tests/ThRZSettings.yaml
index 8586ee1b..bcec8026 100644
--- a/armi/tests/ThRZSettings.yaml
+++ b/armi/tests/ThRZSettings.yaml
@@ -3,7 +3,7 @@ metadata:
 settings:
   branchVerbosity: info
   burnSteps: 0
-  comment: 'Revised benchmark  '
+  comment: "Revised benchmark  "
   db: false
   economics: false
   genXS: Neutron
diff --git a/armi/tests/ThRZloading.yaml b/armi/tests/ThRZloading.yaml
index 7da85bc9..665a5d34 100644
--- a/armi/tests/ThRZloading.yaml
+++ b/armi/tests/ThRZloading.yaml
@@ -1,124 +1,146 @@
 custom isotopics: {}
 blocks:
-    fuel: &block_fuel
-        bond:
-            shape: Circle
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            id: fuel.od
-            mult: fuel.mult
-            od: clad.id
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 470.0
-            Thot: 470.0
-            id: 1.0
-            mult: fuel.mult
-            od: 1.09
-        coolant: &component_fuel_coolant
-            shape: UnshapedComponent
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            area: 66.0
-        duct: &component_fuel_duct
-            shape: Hexagon
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            ip: 16.0
-            mult: 1.0
-            op: 16.6
-        fuel:
-            shape: Circle
-            material: UZr
-            Tinput: 600.0
-            Thot: 600.0
-            id: 0.0
-            mult: 169.0
-            od: 0.87
-        intercoolant: &component_fuel_intercoolant
-            shape: Hexagon
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            ip: duct.op
-            mult: 1.0
-            op: 16.75
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            axialPitch: 30.
-            helixDiameter: 1.2
-            id: 0.0
-            mult: fuel.mult
-            od: 0.1
-    reflector: &block_reflector
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 470.0
-            Thot: 470.0
-            id: 1.0
-            mult: reflector.mult
-            od: 1.09
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
-        reflector:
-            shape: Circle
-            material: HT9
-            Tinput: 600.0
-            Thot: 600.0
-            id: 0.0
-            mult: 169.0
-            od: 1.0
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            axialPitch: 30.
-            helixDiameter: 1.2
-            id: 0.0
-            mult: reflector.mult
-            od: 0.1
-assemblies:
-    heights: &standard_heights [10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0]
-    axial mesh points: &standard_axial_mesh_points [1, 1, 1, 1, 1, 1, 1, 1, 1]
+  fuel: &block_fuel
+    bond:
+      shape: Circle
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      id: fuel.od
+      mult: fuel.mult
+      od: clad.id
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 470.0
+      Thot: 470.0
+      id: 1.0
+      mult: fuel.mult
+      od: 1.09
+    coolant: &component_fuel_coolant
+      shape: UnshapedComponent
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      area: 66.0
+    duct: &component_fuel_duct
+      shape: Hexagon
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      ip: 16.0
+      mult: 1.0
+      op: 16.6
     fuel:
-        specifier: IC
-        blocks: &fuel_blocks [*block_reflector, *block_fuel, *block_fuel, *block_fuel, *block_fuel, *block_fuel, *block_fuel, *block_fuel, *block_reflector]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        radial mesh points: 4
-        azimuthal mesh points: 4
-        material modifications:
-            U235_wt_frac: ['', 0.15, 0.15, 0.15, 0.15, 0.15, 0.15, 0.15, '']
-            ZR_wt_frac: &fuel_zr_wt_frac ['', 0.06, 0.06, 0.06, 0.06, 0.06, 0.06, 0.06, '']
-        xs types: &fuel_xs_types [A, A, A, A, A, A, A, A, A]
-    blanket fuel:
-        specifier: MC
-        blocks: *fuel_blocks
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        radial mesh points: 4
-        azimuthal mesh points: 4
-        material modifications:
-            U235_wt_frac: ['', 0.003, 0.003, 0.003, 0.003, 0.003, 0.003, 0.003, '']
-            ZR_wt_frac: *fuel_zr_wt_frac
-        xs types: *fuel_xs_types
+      shape: Circle
+      material: UZr
+      Tinput: 600.0
+      Thot: 600.0
+      id: 0.0
+      mult: 169.0
+      od: 0.87
+    intercoolant: &component_fuel_intercoolant
+      shape: Hexagon
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      ip: duct.op
+      mult: 1.0
+      op: 16.75
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      axialPitch: 30.
+      helixDiameter: 1.2
+      id: 0.0
+      mult: fuel.mult
+      od: 0.1
+  reflector: &block_reflector
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 470.0
+      Thot: 470.0
+      id: 1.0
+      mult: reflector.mult
+      od: 1.09
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
     reflector:
-        specifier: RR
-        blocks: [*block_reflector, *block_reflector, *block_reflector, *block_reflector, *block_reflector, *block_reflector, *block_reflector, *block_reflector, *block_reflector]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        radial mesh points: 4
-        azimuthal mesh points: 4
-        xs types: *fuel_xs_types
-
-
+      shape: Circle
+      material: HT9
+      Tinput: 600.0
+      Thot: 600.0
+      id: 0.0
+      mult: 169.0
+      od: 1.0
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      axialPitch: 30.
+      helixDiameter: 1.2
+      id: 0.0
+      mult: reflector.mult
+      od: 0.1
+assemblies:
+  heights:
+    &standard_heights [10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0]
+  axial mesh points: &standard_axial_mesh_points [1, 1, 1, 1, 1, 1, 1, 1, 1]
+  fuel:
+    specifier: IC
+    blocks:
+      &fuel_blocks [
+        *block_reflector,
+        *block_fuel,
+        *block_fuel,
+        *block_fuel,
+        *block_fuel,
+        *block_fuel,
+        *block_fuel,
+        *block_fuel,
+        *block_reflector,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    radial mesh points: 4
+    azimuthal mesh points: 4
+    material modifications:
+      U235_wt_frac: ["", 0.15, 0.15, 0.15, 0.15, 0.15, 0.15, 0.15, ""]
+      ZR_wt_frac:
+        &fuel_zr_wt_frac ["", 0.06, 0.06, 0.06, 0.06, 0.06, 0.06, 0.06, ""]
+    xs types: &fuel_xs_types [A, A, A, A, A, A, A, A, A]
+  blanket fuel:
+    specifier: MC
+    blocks: *fuel_blocks
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    radial mesh points: 4
+    azimuthal mesh points: 4
+    material modifications:
+      U235_wt_frac: ["", 0.003, 0.003, 0.003, 0.003, 0.003, 0.003, 0.003, ""]
+      ZR_wt_frac: *fuel_zr_wt_frac
+    xs types: *fuel_xs_types
+  reflector:
+    specifier: RR
+    blocks:
+      [
+        *block_reflector,
+        *block_reflector,
+        *block_reflector,
+        *block_reflector,
+        *block_reflector,
+        *block_reflector,
+        *block_reflector,
+        *block_reflector,
+        *block_reflector,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    radial mesh points: 4
+    azimuthal mesh points: 4
+    xs types: *fuel_xs_types
diff --git a/armi/tests/armiRun.yaml b/armi/tests/armiRun.yaml
index f28bef69..33a86082 100644
--- a/armi/tests/armiRun.yaml
+++ b/armi/tests/armiRun.yaml
@@ -66,7 +66,7 @@ settings:
   smallRun: true
   summarizeAssemDesign: false
   targetK: 1.002
-  transientForSensitivity: ''
+  transientForSensitivity: ""
   verbosity: extra
   versions:
     armi: uncontrolled
diff --git a/armi/tests/detailedAxialExpansion/refSmallReactorBase.yaml b/armi/tests/detailedAxialExpansion/refSmallReactorBase.yaml
index 623b8b8b..65fb02d8 100644
--- a/armi/tests/detailedAxialExpansion/refSmallReactorBase.yaml
+++ b/armi/tests/detailedAxialExpansion/refSmallReactorBase.yaml
@@ -41,7 +41,7 @@ blocks:
             ip: grid.op
             mult: 1.0
             op: 16.75
-    
+
     duct: &block_duct
         coolant: *component_coolant
         duct: &component_duct
@@ -61,7 +61,7 @@ blocks:
             mult: 1.0
             op: 16.75
 
-    SodiumBlock : &block_dummy
+    SodiumBlock: &block_dummy
         flags: dummy
         coolant:
             shape: Hexagon
@@ -109,11 +109,11 @@ blocks:
             id: 0.0
             mult: shield.mult
             od: 0.10056
-        coolant: *component_coolant      
+        coolant: *component_coolant
         duct: *component_duct
         intercoolant: *component_intercoolant
 
-    fuel: &block_fuel    
+    fuel: &block_fuel
         fuel: &component_fuel_fuel
             shape: Circle
             material: UZr
@@ -151,7 +151,7 @@ blocks:
         coolant: *component_coolant
         duct: *component_duct
         intercoolant: *component_intercoolant
-    
+
     plenum: &block_plenum
         gap: &component_plenum_gap
             shape: Circle
@@ -182,8 +182,8 @@ blocks:
         coolant: *component_coolant
         duct: *component_duct
         intercoolant: *component_intercoolant
-    
-    aclp plenum : &block_aclp
+
+    aclp plenum: &block_aclp
         gap: *component_plenum_gap
         clad: *component_plenum_clad
         wire: *component_plenum_wire
@@ -232,18 +232,18 @@ blocks:
         coolant: *component_coolant
         duct: *component_duct
         intercoolant: *component_intercoolant
-    
+
     lta fuel a: &block_lta1_fuel
         fuel: *component_fuel_fuel
         bond: *component_fuel_bond
         liner2: *component_fuel2_liner2
         liner1: *component_fuel2_liner1
-        clad: *component_fuel_clad        
+        clad: *component_fuel_clad
         wire: *component_fuel_wire
         coolant: *component_coolant
         duct: *component_duct
         intercoolant: *component_intercoolant
-    
+
     lta fuel b: &block_lta2_fuel
         fuel:
             shape: Circle
@@ -257,12 +257,12 @@ blocks:
         bond: *component_fuel_bond
         liner2: *component_fuel2_liner2
         liner1: *component_fuel2_liner1
-        clad: *component_fuel_clad        
+        clad: *component_fuel_clad
         wire: *component_fuel_wire
         coolant: *component_coolant
         duct: *component_duct
         intercoolant: *component_intercoolant
-    
+
     annular fuel gap: &block_fuel3
         gap1:
             shape: Circle
@@ -333,7 +333,7 @@ blocks:
         coolant: *component_coolant
         duct: *component_duct
         intercoolant: *component_intercoolant
-    
+
     ## ------------------------------------------------------------------------------------
     ## control
     moveable duct: &block_ctrl_duct
@@ -389,7 +389,7 @@ blocks:
             helixDiameter: 1.771
             id: 0.0
             mult: clad.mult
-            od: 0.085 
+            od: 0.085
         innerDuct: &component_control_innerDuct
             shape: Hexagon
             material: HT9
@@ -401,7 +401,7 @@ blocks:
         duct: *component_control_duct
         coolant: *component_coolant
         intercoolant: *component_control_intercoolant
-    
+
     moveable plenum: &block_control_plenum
         gap: *component_control_gap
         clad: *component_control_clad
@@ -495,7 +495,7 @@ assemblies:
         xs types: *igniter_fuel_xs_types
     lead test fuel:
         specifier: LA
-        blocks: [*block_grid_plate, *block_fuel_axial_shield, *block_lta1_fuel, *block_lta1_fuel, *block_lta1_fuel, *block_plenum,  *block_aclp, *block_plenum, *block_duct, *block_dummy]
+        blocks: [*block_grid_plate, *block_fuel_axial_shield, *block_lta1_fuel, *block_lta1_fuel, *block_lta1_fuel, *block_plenum, *block_aclp, *block_plenum, *block_duct, *block_dummy]
         height: *highOffset_height
         axial mesh points: *standard_axial_mesh_points
         material modifications:
diff --git a/armi/tests/refSmallCartesian.yaml b/armi/tests/refSmallCartesian.yaml
index 18066c5b..fae2134e 100644
--- a/armi/tests/refSmallCartesian.yaml
+++ b/armi/tests/refSmallCartesian.yaml
@@ -1,309 +1,337 @@
 custom isotopics:
-    MOX:
-        input format: number densities
-        AM241: 2.3606e-05
-        PU238: 3.7387e-06
-        PU239: 0.00286038
-        PU240: 0.000712945
-        PU241: 9.82312e-05
-        PU242: 2.02221e-05
-        U235: 0.00405533
-        U238: 0.0134125
+  MOX:
+    input format: number densities
+    AM241: 2.3606e-05
+    PU238: 3.7387e-06
+    PU239: 0.00286038
+    PU240: 0.000712945
+    PU241: 9.82312e-05
+    PU242: 2.02221e-05
+    U235: 0.00405533
+    U238: 0.0134125
 blocks:
-    fuel: &block_fuel
-        fuel:
-            shape: Circle
-            material: UZr
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.0
-            mult: 64.0
-            od: 0.7
-        clad: &component_fuel_clad
-            shape: Circle
-            material: HT9
-            Tinput: 25.0
-            Thot: 470.0
-            id: 1.0
-            mult: fuel.mult
-            od: 1.15
-        bond: &component_fuel_bond
-            shape: Circle
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            id: fuel.od
-            mult: fuel.mult
-            od: clad.id
-        wire: &component_fuel_wire
-            shape: Helix
-            material: HT9
-            Tinput: 25.0
-            Thot: 450.0
-            axialPitch: 30.15
-            helixDiameter: 1.2
-            id: 0.0
-            mult: fuel.mult
-            od: 0.100
-        coolant: &component_fuel_coolant
-            shape: DerivedShape
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-        duct: &component_fuel_duct
-            shape: Rectangle
-            material: HT9
-            Tinput: 25.0
-            Thot: 450.0
-            lengthInner: 9.0
-            lengthOuter: 9.5
-            mult: 1.0
-            widthInner: 9.0
-            widthOuter: 9.5
-        intercoolant: &component_fuel_intercoolant
-            shape: Rectangle
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            lengthInner: 9.5
-            lengthOuter: 10.0
-            mult: 1.0
-            widthInner: 9.5
-            widthOuter: 10.0
-    control: &block_control
-        control:
-            shape: Circle
-            material: B4C
-            Tinput: 600.0
-            Thot: 600.0
-            id: 0.0
-            mult: 25.0
-            od: 1.3
-        innerduct:
-            shape: Rectangle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            lengthInner: 8.0
-            lengthOuter: 8.5
-            mult: 1.0
-            widthInner: 8.0
-            widthOuter: 8.5
-        duct:
-            shape: Rectangle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            lengthInner: 8.7
-            lengthOuter: 9.0
-            mult: 1.0
-            widthInner: 8.7
-            widthOuter: 9.0
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            id: 1.35
-            mult: control.mult
-            od: 1.7
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            axialPitch: 50.0
-            helixDiameter: 1.7
-            id: 0.0
-            mult: control.mult
-            od: 0.085
-        intercoolant: *component_fuel_intercoolant
-        gap:
-            shape: Circle
-            material: Void
-            Tinput: 450.0
-            Thot: 450.0
-            id: control.od
-            mult: control.mult
-            od: clad.id
-        coolant: *component_fuel_coolant
-    duct: &block_duct
-        duct: &component_duct_duct
-            shape: Rectangle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            lengthInner: 9.0
-            lengthOuter: 9.5
-            mult: 1.0
-            widthInner: 9.0
-            widthOuter: 9.5
-        coolant: *component_fuel_coolant
-        intercoolant: *component_fuel_intercoolant
-    grid plate: &block_grid_plate
-        grid:
-            shape: Rectangle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            lengthInner: 0.0
-            lengthOuter: 9.5
-            mult: 1.0
-            widthInner: 0.0
-            widthOuter: 9.5
-        coolant: *component_fuel_coolant
-        intercoolant: *component_fuel_intercoolant
-    axial shield: &block_axial_shield
-        shield:
-            shape: Circle
-            material: HT9
-            Tinput: 600.0
-            Thot: 600.0
-            id: 0.0
-            mult: 64.0
-            od: 0.90
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            id: 0.905
-            mult: shield.mult
-            od: 1.050
-        gap:
-            shape: Circle
-            material: Void
-            Tinput: 450.0
-            Thot: 450.0
-            id: shield.od
-            mult: shield.mult
-            od: clad.id
-        duct: *component_duct_duct
-        intercoolant: *component_fuel_intercoolant
-        coolant: *component_fuel_coolant
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            axialPitch: 30.15
-            helixDiameter: 10.10
-            id: 0.0
-            mult: shield.mult
-            od: 0.100
-    plenum: &block_plenum
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 25.0
-            Thot: 470.0
-            id: 1.0
-            mult: 64.0
-            od: 1.09
-        gap:
-            shape: Circle
-            material: Void
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.0
-            mult: clad.mult
-            od: clad.id
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 25.0
-            Thot: 450.0
-            axialPitch: 30.
-            helixDiameter: 1.2
-            id: 0.0
-            mult: clad.mult
-            od: 0.1
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
-    fuel2: &block_fuel2
-        fuel:
-            shape: Circle
-            material: Custom
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.0
-            isotopics: MOX
-            mult: 64.0
-            od: 0.87
-        clad: *component_fuel_clad
-        bond: *component_fuel_bond
-        wire: *component_fuel_wire
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
+  fuel: &block_fuel
+    fuel:
+      shape: Circle
+      material: UZr
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.0
+      mult: 64.0
+      od: 0.7
+    clad: &component_fuel_clad
+      shape: Circle
+      material: HT9
+      Tinput: 25.0
+      Thot: 470.0
+      id: 1.0
+      mult: fuel.mult
+      od: 1.15
+    bond: &component_fuel_bond
+      shape: Circle
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      id: fuel.od
+      mult: fuel.mult
+      od: clad.id
+    wire: &component_fuel_wire
+      shape: Helix
+      material: HT9
+      Tinput: 25.0
+      Thot: 450.0
+      axialPitch: 30.15
+      helixDiameter: 1.2
+      id: 0.0
+      mult: fuel.mult
+      od: 0.100
+    coolant: &component_fuel_coolant
+      shape: DerivedShape
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+    duct: &component_fuel_duct
+      shape: Rectangle
+      material: HT9
+      Tinput: 25.0
+      Thot: 450.0
+      lengthInner: 9.0
+      lengthOuter: 9.5
+      mult: 1.0
+      widthInner: 9.0
+      widthOuter: 9.5
+    intercoolant: &component_fuel_intercoolant
+      shape: Rectangle
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      lengthInner: 9.5
+      lengthOuter: 10.0
+      mult: 1.0
+      widthInner: 9.5
+      widthOuter: 10.0
+  control: &block_control
+    control:
+      shape: Circle
+      material: B4C
+      Tinput: 600.0
+      Thot: 600.0
+      id: 0.0
+      mult: 25.0
+      od: 1.3
+    innerduct:
+      shape: Rectangle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      lengthInner: 8.0
+      lengthOuter: 8.5
+      mult: 1.0
+      widthInner: 8.0
+      widthOuter: 8.5
+    duct:
+      shape: Rectangle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      lengthInner: 8.7
+      lengthOuter: 9.0
+      mult: 1.0
+      widthInner: 8.7
+      widthOuter: 9.0
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      id: 1.35
+      mult: control.mult
+      od: 1.7
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      axialPitch: 50.0
+      helixDiameter: 1.7
+      id: 0.0
+      mult: control.mult
+      od: 0.085
+    intercoolant: *component_fuel_intercoolant
+    gap:
+      shape: Circle
+      material: Void
+      Tinput: 450.0
+      Thot: 450.0
+      id: control.od
+      mult: control.mult
+      od: clad.id
+    coolant: *component_fuel_coolant
+  duct: &block_duct
+    duct: &component_duct_duct
+      shape: Rectangle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      lengthInner: 9.0
+      lengthOuter: 9.5
+      mult: 1.0
+      widthInner: 9.0
+      widthOuter: 9.5
+    coolant: *component_fuel_coolant
+    intercoolant: *component_fuel_intercoolant
+  grid plate: &block_grid_plate
+    grid:
+      shape: Rectangle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      lengthInner: 0.0
+      lengthOuter: 9.5
+      mult: 1.0
+      widthInner: 0.0
+      widthOuter: 9.5
+    coolant: *component_fuel_coolant
+    intercoolant: *component_fuel_intercoolant
+  axial shield: &block_axial_shield
+    shield:
+      shape: Circle
+      material: HT9
+      Tinput: 600.0
+      Thot: 600.0
+      id: 0.0
+      mult: 64.0
+      od: 0.90
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      id: 0.905
+      mult: shield.mult
+      od: 1.050
+    gap:
+      shape: Circle
+      material: Void
+      Tinput: 450.0
+      Thot: 450.0
+      id: shield.od
+      mult: shield.mult
+      od: clad.id
+    duct: *component_duct_duct
+    intercoolant: *component_fuel_intercoolant
+    coolant: *component_fuel_coolant
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      axialPitch: 30.15
+      helixDiameter: 10.10
+      id: 0.0
+      mult: shield.mult
+      od: 0.100
+  plenum: &block_plenum
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 25.0
+      Thot: 470.0
+      id: 1.0
+      mult: 64.0
+      od: 1.09
+    gap:
+      shape: Circle
+      material: Void
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.0
+      mult: clad.mult
+      od: clad.id
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 25.0
+      Thot: 450.0
+      axialPitch: 30.
+      helixDiameter: 1.2
+      id: 0.0
+      mult: clad.mult
+      od: 0.1
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
+  fuel2: &block_fuel2
+    fuel:
+      shape: Circle
+      material: Custom
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.0
+      isotopics: MOX
+      mult: 64.0
+      od: 0.87
+    clad: *component_fuel_clad
+    bond: *component_fuel_bond
+    wire: *component_fuel_wire
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
 assemblies:
-    heights: &standard_heights [25.0, 25.0, 25.0, 25.0, 75.0]
-    axial mesh points: &standard_axial_mesh_points [1, 1, 1, 1, 4]
-    igniter fuel:
-        specifier: IC
-        blocks: &igniter_fuel_blocks [*block_grid_plate, *block_fuel, *block_fuel, *block_fuel, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        hotChannelFactors: TWRPclad
-        material modifications:
-            U235_wt_frac: &igniter_fuel_u235_wt_frac ['', 0.11, 0.11, 0.11, '']
-            ZR_wt_frac: &igniter_fuel_zr_wt_frac ['', 0.06, 0.06, 0.06, '']
-        xs types: &igniter_fuel_xs_types [A, A, A, A, A]
-    middle fuel:
-        specifier: MC
-        blocks: [*block_grid_plate, *block_fuel2, *block_fuel2, *block_fuel2, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: *igniter_fuel_xs_types
-    feed fuel:
-        specifier: OC
-        blocks: *igniter_fuel_blocks
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        material modifications:
-            U235_wt_frac: *igniter_fuel_u235_wt_frac
-            ZR_wt_frac: *igniter_fuel_zr_wt_frac
-        xs types: *igniter_fuel_xs_types
-    primary control:
-        specifier: PC
-        blocks: [*block_grid_plate, *block_duct, *block_duct, *block_control, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: *igniter_fuel_xs_types
-    radial shield:
-        specifier: SH
-        blocks: [*block_grid_plate, *block_axial_shield, *block_axial_shield, *block_axial_shield, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: *igniter_fuel_xs_types
+  heights: &standard_heights [25.0, 25.0, 25.0, 25.0, 75.0]
+  axial mesh points: &standard_axial_mesh_points [1, 1, 1, 1, 4]
+  igniter fuel:
+    specifier: IC
+    blocks:
+      &igniter_fuel_blocks [
+        *block_grid_plate,
+        *block_fuel,
+        *block_fuel,
+        *block_fuel,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    hotChannelFactors: TWRPclad
+    material modifications:
+      U235_wt_frac: &igniter_fuel_u235_wt_frac ["", 0.11, 0.11, 0.11, ""]
+      ZR_wt_frac: &igniter_fuel_zr_wt_frac ["", 0.06, 0.06, 0.06, ""]
+    xs types: &igniter_fuel_xs_types [A, A, A, A, A]
+  middle fuel:
+    specifier: MC
+    blocks:
+      [
+        *block_grid_plate,
+        *block_fuel2,
+        *block_fuel2,
+        *block_fuel2,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: *igniter_fuel_xs_types
+  feed fuel:
+    specifier: OC
+    blocks: *igniter_fuel_blocks
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    material modifications:
+      U235_wt_frac: *igniter_fuel_u235_wt_frac
+      ZR_wt_frac: *igniter_fuel_zr_wt_frac
+    xs types: *igniter_fuel_xs_types
+  primary control:
+    specifier: PC
+    blocks:
+      [
+        *block_grid_plate,
+        *block_duct,
+        *block_duct,
+        *block_control,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: *igniter_fuel_xs_types
+  radial shield:
+    specifier: SH
+    blocks:
+      [
+        *block_grid_plate,
+        *block_axial_shield,
+        *block_axial_shield,
+        *block_axial_shield,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: *igniter_fuel_xs_types
 
 systems:
-    core:
-        grid name: core
-        origin:
-            x: 0.0
-            y: 0.0
-            z: 0.0
+  core:
+    grid name: core
+    origin:
+      x: 0.0
+      y: 0.0
+      z: 0.0
 
 grids:
-    core:
-        geom: cartesian
-        symmetry: full
-        lattice pitch:
-            x: 10.0
-            y: 10.0
-        lattice map: |
-              SH SH SH SH SH SH SH SH SH SH SH SH SH
-              SH OC OC OC OC OC OC OC OC OC OC OC SH
-              SH OC MC MC MC MC MC MC MC MC MC OC SH
-              SH OC MC IC IC IC IC IC IC IC MC OC SH
-              SH OC MC IC IC IC IC IC IC IC MC OC SH
-              SH OC MC IC IC IC IC IC IC IC MC OC SH
-              SH OC MC IC IC IC IC IC IC IC MC OC SH
-              SH OC MC IC IC IC IC IC IC IC MC OC SH
-              SH OC MC IC IC IC IC IC IC IC MC OC SH
-              SH OC MC IC IC IC IC IC IC IC MC OC SH
-              SH OC MC MC MC MC MC MC MC MC MC OC SH
-              SH OC OC OC OC OC OC OC OC OC OC OC SH
-              SH SH SH SH SH SH SH SH SH SH SH SH SH
\ No newline at end of file
+  core:
+    geom: cartesian
+    symmetry: full
+    lattice pitch:
+      x: 10.0
+      y: 10.0
+    lattice map: |
+      SH SH SH SH SH SH SH SH SH SH SH SH SH
+      SH OC OC OC OC OC OC OC OC OC OC OC SH
+      SH OC MC MC MC MC MC MC MC MC MC OC SH
+      SH OC MC IC IC IC IC IC IC IC MC OC SH
+      SH OC MC IC IC IC IC IC IC IC MC OC SH
+      SH OC MC IC IC IC IC IC IC IC MC OC SH
+      SH OC MC IC IC IC IC IC IC IC MC OC SH
+      SH OC MC IC IC IC IC IC IC IC MC OC SH
+      SH OC MC IC IC IC IC IC IC IC MC OC SH
+      SH OC MC IC IC IC IC IC IC IC MC OC SH
+      SH OC MC MC MC MC MC MC MC MC MC OC SH
+      SH OC OC OC OC OC OC OC OC OC OC OC SH
+      SH SH SH SH SH SH SH SH SH SH SH SH SH
diff --git a/armi/tests/refSmallReactorBase.yaml b/armi/tests/refSmallReactorBase.yaml
index 3eea57d0..14ad2e06 100644
--- a/armi/tests/refSmallReactorBase.yaml
+++ b/armi/tests/refSmallReactorBase.yaml
@@ -1,435 +1,483 @@
 custom isotopics:
-    MOX:
-        input format: number densities
-        AM241: 2.3606e-05
-        PU238: 3.7387e-06
-        PU239: 0.00286038
-        PU240: 0.000712945
-        PU241: 9.82312e-05
-        PU242: 2.02221e-05
-        U235: 0.00405533
-        U238: 0.0134125
-    PuUZr:
-        input format: mass fractions
-        PU239: 0.1
-        U235: 0.15
-        U238: 0.65
-        ZR: 0.1
+  MOX:
+    input format: number densities
+    AM241: 2.3606e-05
+    PU238: 3.7387e-06
+    PU239: 0.00286038
+    PU240: 0.000712945
+    PU241: 9.82312e-05
+    PU242: 2.02221e-05
+    U235: 0.00405533
+    U238: 0.0134125
+  PuUZr:
+    input format: mass fractions
+    PU239: 0.1
+    U235: 0.15
+    U238: 0.65
+    ZR: 0.1
 blocks:
-    fuel: &block_fuel
-        fuel: &component_fuel_fuel
-            shape: Circle
-            material: UZr
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.0
-            mult: 169.0
-            od: 0.86602
-        clad: &component_fuel_clad
-            shape: Circle
-            material: HT9
-            Tinput: 25.0
-            Thot: 470.0
-            id: 1.0
-            mult: fuel.mult
-            od: 1.09
-        bond: &component_fuel_bond
-            shape: Circle
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            id: fuel.od
-            mult: fuel.mult
-            od: clad.id
-        wire: &component_fuel_wire
-            shape: Helix
-            material: HT9
-            Tinput: 25.0
-            Thot: 450.0
-            axialPitch: 30.15
-            helixDiameter: 1.19056
-            id: 0.0
-            mult: fuel.mult
-            od: 0.10056
-        coolant: &component_fuel_coolant
-            shape: DerivedShape
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-        duct: &component_fuel_duct
-            shape: Hexagon
-            material: HT9
-            Tinput: 25.0
-            Thot: 450.0
-            ip: 16.0
-            mult: 1.0
-            op: 16.6
-        intercoolant: &component_fuel_intercoolant
-            shape: Hexagon
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            ip: duct.op
-            mult: 1.0
-            op: 16.75
-    moveable control: &block_control
-        control:
-            shape: Circle
-            material: B4C
-            Tinput: 600.0
-            Thot: 600.0
-            id: 0.0
-            mult: 61.0
-            od: 1.286
-        innerDuct:
-            shape: Hexagon
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            ip: 14.268
-            mult: 1.0
-            op: 14.582
-        duct: &component_control_duct
-            shape: Hexagon
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            ip: 15.277
-            mult: 1.0
-            op: 16.28228
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            id: 1.358
-            mult: control.mult
-            od: 1.686
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            axialPitch: 50.0
-            helixDiameter: 1.771
-            id: 0.0
-            mult: control.mult
-            od: 0.085
-        intercoolant: *component_fuel_intercoolant
-        gap:
-            shape: Circle
-            material: Void
-            Tinput: 450.0
-            Thot: 450.0
-            id: control.od
-            mult: control.mult
-            od: clad.id
-        coolant: *component_fuel_coolant
-    duct: &block_duct
-        duct: *component_control_duct
-        coolant: *component_fuel_coolant
-        intercoolant: *component_fuel_intercoolant
-    grid plate: &block_grid_plate
-        grid: &component_grid_plate_grid
-            shape: Hexagon
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            ip: 15.277
-            mult: 1.0
-            op: 16.577
-        coolant: *component_fuel_coolant
-        intercoolant:
-            shape: Hexagon
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            ip: grid.op
-            mult: 1.0
-            op: 16.75
-    grid plate broken:
-        grid: *component_grid_plate_grid
-        coolant: *component_fuel_coolant
-        intercoolant:
-            shape: Hexagon
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            ip: grid.op
-            mult: 1.0
-            op: 0.0
-    axial shield: &block_axial_shield
-        shield:
-            shape: Circle
-            material: HT9
-            Tinput: 600.0
-            Thot: 600.0
-            id: 0.0
-            mult: 169.0
-            od: 0.90362
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            id: 0.90562
-            mult: shield.mult
-            od: 1.05036
-        gap:
-            shape: Circle
-            material: Void
-            Tinput: 450.0
-            Thot: 450.0
-            id: shield.od
-            mult: shield.mult
-            od: clad.id
-        duct: *component_control_duct
-        intercoolant: *component_fuel_intercoolant
-        coolant: *component_fuel_coolant
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 450.0
-            Thot: 450.0
-            axialPitch: 30.15
-            helixDiameter: 16.85056
-            id: 0.0
-            mult: shield.mult
-            od: 0.10056
-    moveable plenum: &block_plenum
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 25.0
-            Thot: 470.0
-            id: 1.0
-            mult: 169.0
-            od: 1.09
-        gap:
-            shape: Circle
-            material: Void
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.0
-            mult: clad.mult
-            od: clad.id
-        wire:
-            shape: Helix
-            material: HT9
-            Tinput: 25.0
-            Thot: 450.0
-            axialPitch: 30.15
-            helixDiameter: 1.19056
-            id: 0.0
-            mult: clad.mult
-            od: 0.10056
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
-    fuel2: &block_fuel2
-        fuel:
-            shape: Circle
-            material: Custom
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.0
-            isotopics: MOX
-            mult: 169.0
-            od: 0.86602
-        bond: &component_fuel_bond2
-            shape: Circle
-            material: Sodium
-            Tinput: 450.0
-            Thot: 450.0
-            id: fuel.od
-            mult: fuel.mult
-            od: liner1.id
-        clad: *component_fuel_clad
-        liner1: &component_fuel2_liner1
-            shape: Circle
-            material: HT9
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.99
-            mergeWith: clad
-            mult: 169.0
-            od: 1.0
-        liner2: &component_fuel2_liner2
-            shape: Circle
-            material: HT9
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.98
-            mergeWith: clad
-            mult: 169.0
-            od: 0.99
-        wire: *component_fuel_wire
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
-    lta1 fuel: &block_lta1_fuel
-        fuel: *component_fuel_fuel
-        clad: *component_fuel_clad
-        liner1: *component_fuel2_liner1
-        liner2: *component_fuel2_liner2
-        bond: *component_fuel_bond
-        wire: *component_fuel_wire
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
-    lta2 fuel: &block_lta2_fuel
-        fuel:
-            shape: Circle
-            material: UZr
-            Tinput: 25.0
-            Thot: 600.0
-            id: 0.0
-            isotopics: PuUZr
-            mult: 169.0
-            od: 0.86602
-        clad: *component_fuel_clad
-        liner1: *component_fuel2_liner1
-        liner2: *component_fuel2_liner2
-        bond: *component_fuel_bond
-        wire: *component_fuel_wire
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
-    annular fuel gap: &block_fuel3
-        gap1:
-            shape: Circle
-            material: Void
-            Tinput: 20.0
-            Thot: 430.0
-            id: 0.0
-            mult: fuel.mult
-            od: fuel.id
-        fuel:
-            shape: Circle
-            material: UZr
-            Tinput: 20.0
-            Thot: 600.0
-            id: 0.600
-            mult: 169.0
-            od: 0.878
-            flags: annular fuel depletable
-        gap2:
-            shape: Circle
-            material: Void
-            Tinput: 20.0
-            Thot: 430.0
-            id: fuel.od
-            mult: fuel.mult
-            od: inner liner.id
-        inner liner:
-            shape: Circle
-            material: HT9
-            Tinput: 20.0
-            Thot: 430.0
-            id: 0.878
-            mult: fuel.mult
-            od: 0.898
-        gap3:
-            shape: Circle
-            material: Void
-            Tinput: 20.0
-            Thot: 430.0
-            id: inner liner.od
-            mult: fuel.mult
-            od: outer liner.id
-        outer liner:
-            shape: Circle
-            material: Zr
-            Tinput: 20.0
-            Thot: 430.0
-            id: 0.898
-            mult: fuel.mult
-            od: 0.900
-        gap4:
-            shape: Circle
-            material: Void
-            Tinput: 20.0
-            Thot: 430.0
-            id: outer liner.od
-            mult: fuel.mult
-            od: clad.id
-        clad:
-            shape: Circle
-            material: HT9
-            Tinput: 20.0
-            Thot: 430.0
-            id: 0.900
-            mult: fuel.mult
-            od: 1.000
-        wire: *component_fuel_wire
-        coolant: *component_fuel_coolant
-        duct: *component_fuel_duct
-        intercoolant: *component_fuel_intercoolant
+  fuel: &block_fuel
+    fuel: &component_fuel_fuel
+      shape: Circle
+      material: UZr
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.0
+      mult: 169.0
+      od: 0.86602
+    clad: &component_fuel_clad
+      shape: Circle
+      material: HT9
+      Tinput: 25.0
+      Thot: 470.0
+      id: 1.0
+      mult: fuel.mult
+      od: 1.09
+    bond: &component_fuel_bond
+      shape: Circle
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      id: fuel.od
+      mult: fuel.mult
+      od: clad.id
+    wire: &component_fuel_wire
+      shape: Helix
+      material: HT9
+      Tinput: 25.0
+      Thot: 450.0
+      axialPitch: 30.15
+      helixDiameter: 1.19056
+      id: 0.0
+      mult: fuel.mult
+      od: 0.10056
+    coolant: &component_fuel_coolant
+      shape: DerivedShape
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+    duct: &component_fuel_duct
+      shape: Hexagon
+      material: HT9
+      Tinput: 25.0
+      Thot: 450.0
+      ip: 16.0
+      mult: 1.0
+      op: 16.6
+    intercoolant: &component_fuel_intercoolant
+      shape: Hexagon
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      ip: duct.op
+      mult: 1.0
+      op: 16.75
+  moveable control: &block_control
+    control:
+      shape: Circle
+      material: B4C
+      Tinput: 600.0
+      Thot: 600.0
+      id: 0.0
+      mult: 61.0
+      od: 1.286
+    innerDuct:
+      shape: Hexagon
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      ip: 14.268
+      mult: 1.0
+      op: 14.582
+    duct: &component_control_duct
+      shape: Hexagon
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      ip: 15.277
+      mult: 1.0
+      op: 16.28228
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      id: 1.358
+      mult: control.mult
+      od: 1.686
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      axialPitch: 50.0
+      helixDiameter: 1.771
+      id: 0.0
+      mult: control.mult
+      od: 0.085
+    intercoolant: *component_fuel_intercoolant
+    gap:
+      shape: Circle
+      material: Void
+      Tinput: 450.0
+      Thot: 450.0
+      id: control.od
+      mult: control.mult
+      od: clad.id
+    coolant: *component_fuel_coolant
+  duct: &block_duct
+    duct: *component_control_duct
+    coolant: *component_fuel_coolant
+    intercoolant: *component_fuel_intercoolant
+  grid plate: &block_grid_plate
+    grid: &component_grid_plate_grid
+      shape: Hexagon
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      ip: 15.277
+      mult: 1.0
+      op: 16.577
+    coolant: *component_fuel_coolant
+    intercoolant:
+      shape: Hexagon
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      ip: grid.op
+      mult: 1.0
+      op: 16.75
+  grid plate broken:
+    grid: *component_grid_plate_grid
+    coolant: *component_fuel_coolant
+    intercoolant:
+      shape: Hexagon
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      ip: grid.op
+      mult: 1.0
+      op: 0.0
+  axial shield: &block_axial_shield
+    shield:
+      shape: Circle
+      material: HT9
+      Tinput: 600.0
+      Thot: 600.0
+      id: 0.0
+      mult: 169.0
+      od: 0.90362
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      id: 0.90562
+      mult: shield.mult
+      od: 1.05036
+    gap:
+      shape: Circle
+      material: Void
+      Tinput: 450.0
+      Thot: 450.0
+      id: shield.od
+      mult: shield.mult
+      od: clad.id
+    duct: *component_control_duct
+    intercoolant: *component_fuel_intercoolant
+    coolant: *component_fuel_coolant
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 450.0
+      Thot: 450.0
+      axialPitch: 30.15
+      helixDiameter: 16.85056
+      id: 0.0
+      mult: shield.mult
+      od: 0.10056
+  moveable plenum: &block_plenum
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 25.0
+      Thot: 470.0
+      id: 1.0
+      mult: 169.0
+      od: 1.09
+    gap:
+      shape: Circle
+      material: Void
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.0
+      mult: clad.mult
+      od: clad.id
+    wire:
+      shape: Helix
+      material: HT9
+      Tinput: 25.0
+      Thot: 450.0
+      axialPitch: 30.15
+      helixDiameter: 1.19056
+      id: 0.0
+      mult: clad.mult
+      od: 0.10056
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
+  fuel2: &block_fuel2
+    fuel:
+      shape: Circle
+      material: Custom
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.0
+      isotopics: MOX
+      mult: 169.0
+      od: 0.86602
+    bond: &component_fuel_bond2
+      shape: Circle
+      material: Sodium
+      Tinput: 450.0
+      Thot: 450.0
+      id: fuel.od
+      mult: fuel.mult
+      od: liner1.id
+    clad: *component_fuel_clad
+    liner1: &component_fuel2_liner1
+      shape: Circle
+      material: HT9
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.99
+      mergeWith: clad
+      mult: 169.0
+      od: 1.0
+    liner2: &component_fuel2_liner2
+      shape: Circle
+      material: HT9
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.98
+      mergeWith: clad
+      mult: 169.0
+      od: 0.99
+    wire: *component_fuel_wire
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
+  lta1 fuel: &block_lta1_fuel
+    fuel: *component_fuel_fuel
+    clad: *component_fuel_clad
+    liner1: *component_fuel2_liner1
+    liner2: *component_fuel2_liner2
+    bond: *component_fuel_bond
+    wire: *component_fuel_wire
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
+  lta2 fuel: &block_lta2_fuel
+    fuel:
+      shape: Circle
+      material: UZr
+      Tinput: 25.0
+      Thot: 600.0
+      id: 0.0
+      isotopics: PuUZr
+      mult: 169.0
+      od: 0.86602
+    clad: *component_fuel_clad
+    liner1: *component_fuel2_liner1
+    liner2: *component_fuel2_liner2
+    bond: *component_fuel_bond
+    wire: *component_fuel_wire
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
+  annular fuel gap: &block_fuel3
+    gap1:
+      shape: Circle
+      material: Void
+      Tinput: 20.0
+      Thot: 430.0
+      id: 0.0
+      mult: fuel.mult
+      od: fuel.id
+    fuel:
+      shape: Circle
+      material: UZr
+      Tinput: 20.0
+      Thot: 600.0
+      id: 0.600
+      mult: 169.0
+      od: 0.878
+      flags: annular fuel depletable
+    gap2:
+      shape: Circle
+      material: Void
+      Tinput: 20.0
+      Thot: 430.0
+      id: fuel.od
+      mult: fuel.mult
+      od: inner liner.id
+    inner liner:
+      shape: Circle
+      material: HT9
+      Tinput: 20.0
+      Thot: 430.0
+      id: 0.878
+      mult: fuel.mult
+      od: 0.898
+    gap3:
+      shape: Circle
+      material: Void
+      Tinput: 20.0
+      Thot: 430.0
+      id: inner liner.od
+      mult: fuel.mult
+      od: outer liner.id
+    outer liner:
+      shape: Circle
+      material: Zr
+      Tinput: 20.0
+      Thot: 430.0
+      id: 0.898
+      mult: fuel.mult
+      od: 0.900
+    gap4:
+      shape: Circle
+      material: Void
+      Tinput: 20.0
+      Thot: 430.0
+      id: outer liner.od
+      mult: fuel.mult
+      od: clad.id
+    clad:
+      shape: Circle
+      material: HT9
+      Tinput: 20.0
+      Thot: 430.0
+      id: 0.900
+      mult: fuel.mult
+      od: 1.000
+    wire: *component_fuel_wire
+    coolant: *component_fuel_coolant
+    duct: *component_fuel_duct
+    intercoolant: *component_fuel_intercoolant
 assemblies:
-    heights: &standard_heights [25.0, 25.0, 25.0, 25.0, 75.0]
-    axial mesh points: &standard_axial_mesh_points [1, 1, 1, 1, 4]
-    igniter fuel:
-        specifier: IC
-        blocks: &igniter_fuel_blocks [*block_grid_plate, *block_fuel, *block_fuel, *block_fuel, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        material modifications:
-            U235_wt_frac: &igniter_fuel_u235_wt_frac ['', 0.11, 0.11, 0.11, '']
-            ZR_wt_frac: &igniter_fuel_zr_wt_frac ['', 0.06, 0.06, 0.06, '']
-        xs types: &igniter_fuel_xs_types [A, A, A, A, A]
-        nozzleType: Inner
-    middle fuel:
-        specifier: MC
-        blocks: [*block_grid_plate, *block_fuel2, *block_fuel2, *block_fuel2, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: &middle_fuel_xs_types [Z, Z, Z, Z, Z]
-    annular fuel:
-        specifier: AF
-        blocks: [*block_grid_plate, *block_fuel3, *block_fuel3, *block_fuel3, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: *igniter_fuel_xs_types
-    lta fuel:
-        specifier: LA
-        blocks: [*block_grid_plate, *block_lta1_fuel, *block_lta1_fuel, *block_lta1_fuel, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        material modifications:
-            U235_wt_frac: &lta_fuel_u235_wt_frac ['', 0.2, 0.2, 0.2, '']
-            ZR_wt_frac: &lta_fuel_zr_wt_frac ['', 0.07, 0.07, 0.06, '']
-        xs types: *igniter_fuel_xs_types
-        nozzleType: lta
-    lta fuel b:
-        specifier: LB
-        blocks: [*block_grid_plate, *block_lta2_fuel, *block_lta2_fuel, *block_lta2_fuel, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        material modifications:
-            U235_wt_frac: *lta_fuel_u235_wt_frac
-            ZR_wt_frac: *lta_fuel_zr_wt_frac
-        xs types: *igniter_fuel_xs_types
-        nozzleType: lta
-    feed fuel:
-        specifier: OC
-        blocks: *igniter_fuel_blocks
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        material modifications:
-            U235_wt_frac: *igniter_fuel_u235_wt_frac
-            ZR_wt_frac: *igniter_fuel_zr_wt_frac
-        xs types: *igniter_fuel_xs_types
-        nozzleType: Outer
-    primary control:
-        specifier: PC
-        blocks: [*block_grid_plate, *block_duct, *block_control, *block_plenum, *block_duct]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: *igniter_fuel_xs_types
-    radial shield:
-        specifier: SH
-        blocks: [*block_grid_plate, *block_axial_shield, *block_axial_shield, *block_axial_shield, *block_plenum]
-        height: *standard_heights
-        axial mesh points: *standard_axial_mesh_points
-        xs types: *igniter_fuel_xs_types
-
+  heights: &standard_heights [25.0, 25.0, 25.0, 25.0, 75.0]
+  axial mesh points: &standard_axial_mesh_points [1, 1, 1, 1, 4]
+  igniter fuel:
+    specifier: IC
+    blocks:
+      &igniter_fuel_blocks [
+        *block_grid_plate,
+        *block_fuel,
+        *block_fuel,
+        *block_fuel,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    material modifications:
+      U235_wt_frac: &igniter_fuel_u235_wt_frac ["", 0.11, 0.11, 0.11, ""]
+      ZR_wt_frac: &igniter_fuel_zr_wt_frac ["", 0.06, 0.06, 0.06, ""]
+    xs types: &igniter_fuel_xs_types [A, A, A, A, A]
+    nozzleType: Inner
+  middle fuel:
+    specifier: MC
+    blocks:
+      [
+        *block_grid_plate,
+        *block_fuel2,
+        *block_fuel2,
+        *block_fuel2,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: &middle_fuel_xs_types [Z, Z, Z, Z, Z]
+  annular fuel:
+    specifier: AF
+    blocks:
+      [
+        *block_grid_plate,
+        *block_fuel3,
+        *block_fuel3,
+        *block_fuel3,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: *igniter_fuel_xs_types
+  lta fuel:
+    specifier: LA
+    blocks:
+      [
+        *block_grid_plate,
+        *block_lta1_fuel,
+        *block_lta1_fuel,
+        *block_lta1_fuel,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    material modifications:
+      U235_wt_frac: &lta_fuel_u235_wt_frac ["", 0.2, 0.2, 0.2, ""]
+      ZR_wt_frac: &lta_fuel_zr_wt_frac ["", 0.07, 0.07, 0.06, ""]
+    xs types: *igniter_fuel_xs_types
+    nozzleType: lta
+  lta fuel b:
+    specifier: LB
+    blocks:
+      [
+        *block_grid_plate,
+        *block_lta2_fuel,
+        *block_lta2_fuel,
+        *block_lta2_fuel,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    material modifications:
+      U235_wt_frac: *lta_fuel_u235_wt_frac
+      ZR_wt_frac: *lta_fuel_zr_wt_frac
+    xs types: *igniter_fuel_xs_types
+    nozzleType: lta
+  feed fuel:
+    specifier: OC
+    blocks: *igniter_fuel_blocks
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    material modifications:
+      U235_wt_frac: *igniter_fuel_u235_wt_frac
+      ZR_wt_frac: *igniter_fuel_zr_wt_frac
+    xs types: *igniter_fuel_xs_types
+    nozzleType: Outer
+  primary control:
+    specifier: PC
+    blocks:
+      [
+        *block_grid_plate,
+        *block_duct,
+        *block_control,
+        *block_plenum,
+        *block_duct,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: *igniter_fuel_xs_types
+  radial shield:
+    specifier: SH
+    blocks:
+      [
+        *block_grid_plate,
+        *block_axial_shield,
+        *block_axial_shield,
+        *block_axial_shield,
+        *block_plenum,
+      ]
+    height: *standard_heights
+    axial mesh points: *standard_axial_mesh_points
+    xs types: *igniter_fuel_xs_types
diff --git a/armi/tests/refSmallSfpGrid.yaml b/armi/tests/refSmallSfpGrid.yaml
index bcefb6c7..9fa8c350 100644
--- a/armi/tests/refSmallSfpGrid.yaml
+++ b/armi/tests/refSmallSfpGrid.yaml
@@ -1,11 +1,11 @@
 sfp:
-    symmetry: full
-    geom: cartesian
-    lattice pitch:
-        x: 50.0
-        y: 50.0
-    grid contents:
-        [0,0]: MC
-        [1,0]: MC
-        [0,1]: MC
-        [1,1]: MC
+  symmetry: full
+  geom: cartesian
+  lattice pitch:
+    x: 50.0
+    y: 50.0
+  grid contents:
+    [0, 0]: MC
+    [1, 0]: MC
+    [0, 1]: MC
+    [1, 1]: MC
diff --git a/armi/tests/refTestCartesian.yaml b/armi/tests/refTestCartesian.yaml
index ef865625..999b467b 100644
--- a/armi/tests/refTestCartesian.yaml
+++ b/armi/tests/refTestCartesian.yaml
@@ -27,6 +27,6 @@ settings:
   power: 400000000.0
   summarizeAssemDesign: false
   targetK: 1.002
-  transientForSensitivity: ''
+  transientForSensitivity: ""
   versions:
     armi: uncontrolled
diff --git a/armi/tests/smallestTestReactor/refOneBlockReactor.yaml b/armi/tests/smallestTestReactor/refOneBlockReactor.yaml
index e5fa2ea3..762f6537 100644
--- a/armi/tests/smallestTestReactor/refOneBlockReactor.yaml
+++ b/armi/tests/smallestTestReactor/refOneBlockReactor.yaml
@@ -57,14 +57,13 @@ blocks:
             op: 16.8
 assemblies:
     heights: &standard_heights [25.0]
-    axial mesh points: &standard_axial_mesh_points [ 1]
+    axial mesh points: &standard_axial_mesh_points [1]
     igniter fuel:
         specifier: IC
-        blocks: &igniter_fuel_blocks [ *block_fuel]
+        blocks: &igniter_fuel_blocks [*block_fuel]
         height: *standard_heights
         axial mesh points: *standard_axial_mesh_points
         material modifications:
-            U235_wt_frac: &igniter_fuel_u235_wt_frac [ 0.11]
+            U235_wt_frac: &igniter_fuel_u235_wt_frac [0.11]
             ZR_wt_frac: &igniter_fuel_zr_wt_frac [0.06]
         xs types: &igniter_fuel_xs_types [A]
-    
diff --git a/armi/tests/tutorials/anl-afci-177-blueprints.yaml b/armi/tests/tutorials/anl-afci-177-blueprints.yaml
index 7ba1f077..23d77ebd 100644
--- a/armi/tests/tutorials/anl-afci-177-blueprints.yaml
+++ b/armi/tests/tutorials/anl-afci-177-blueprints.yaml
@@ -9,7 +9,7 @@ blocks:
             Tinput: 25.0
             Thot: 450.0
             id: 0.6962
-            od:  0.808
+            od: 0.808
             mult: 271
 # end-block-clad
         wire:
@@ -167,7 +167,7 @@ blocks:
             Tinput: 25.0
             Thot: 450.0
             id: 0.6962
-            od:  0.808
+            od: 0.808
             mult: 271
         wire:
             shape: Helix
@@ -308,38 +308,37 @@ assemblies:
         blocks: [*block_reflector]
         height: [307.74]
         axial mesh points: [1]
-        xs types:  [A]
+        xs types: [A]
 # end-assemblies-rr
     radial shield:
         specifier: SH
         blocks: [*block_shield]
         height: [307.74]
         axial mesh points: [1]
-        xs types:  [A]
+        xs types: [A]
 # end-assemblies-sh
     control:
         specifier: PC
         blocks: [*block_control]
         height: [307.74]
         axial mesh points: [1]
-        xs types:  [A]
+        xs types: [A]
     ultimate shutdown:
         specifier: US
         blocks: [*block_control]
         height: [307.74]
         axial mesh points: [1]
-        xs types:  [A]
+        xs types: [A]
 # end-assemblies-section
 systems:
     core:
-      grid name: core
-      origin:
-          x: 0.0
-          y: 0.0
-          z: 0.0
+        grid name: core
+        origin:
+            x: 0.0
+            y: 0.0
+            z: 0.0
 grids:
     core:
         !include anl-afci-177-coreMap.yaml
 
 # end-systems-section
-
diff --git a/armi/tests/tutorials/anl-afci-177.yaml b/armi/tests/tutorials/anl-afci-177.yaml
index 3fdc5efc..02f8c512 100644
--- a/armi/tests/tutorials/anl-afci-177.yaml
+++ b/armi/tests/tutorials/anl-afci-177.yaml
@@ -1,5 +1,5 @@
 # This file is part of the walthrough_inputs tutorial in ARMI, which
-# uses .. literalinclude to bring in sections of this file. Thus, 
+# uses .. literalinclude to bring in sections of this file. Thus,
 # the comments and order are important. These will get wiped out
 # if you load and re-write a settings file via the ARMI gui, unfortunately.
 # begin-settings
diff --git a/armi/tests/tutorials/c5g7-blueprints.yaml b/armi/tests/tutorials/c5g7-blueprints.yaml
index 1673ef58..a037c4b8 100644
--- a/armi/tests/tutorials/c5g7-blueprints.yaml
+++ b/armi/tests/tutorials/c5g7-blueprints.yaml
@@ -124,7 +124,7 @@ blocks:
             isotopics: moderator
             Tinput: 450.0
             Thot: 450.0
-        # Moderator within the guide tube    
+        # Moderator within the guide tube
         inner moderator guide tube: &guide_tube_moderator
             shape: Circle
             material: SaturatedWater
@@ -178,9 +178,9 @@ blocks:
             widthInner: 21.42
             widthOuter: 21.42
             mult: 1.0
-            latticeIDs: [FC] 
-            # latticeIDs is needed to ensure that the center of the bounding 
-            # Component shares the same center/origin as the rest of the 
+            latticeIDs: [FC]
+            # latticeIDs is needed to ensure that the center of the bounding
+            # Component shares the same center/origin as the rest of the
             # components in the block. See #332."
 # end-block-uo2
     mox: &block_mox
@@ -263,7 +263,7 @@ assemblies:
             - *block_mod
         height: *heights
         axial mesh points: *mesh
-        xs types: [A,A,A,A]
+        xs types: [A, A, A, A]
     mox:
         flags: fuel
         specifier: MOX
@@ -274,7 +274,7 @@ assemblies:
             - *block_mod
         height: *heights
         axial mesh points: *mesh
-        xs types: [A,A,A,A]
+        xs types: [A, A, A, A]
     mod:
         specifier: MOD
         blocks:
@@ -284,16 +284,16 @@ assemblies:
             - *block_mod
         height: *heights
         axial mesh points: *mesh
-        xs types: [A,A,A,A]
+        xs types: [A, A, A, A]
 # end-assemblies
 systems:
     core:
-      grid name: core
+        grid name: core
 
-      origin:
-          x: 0.0
-          y: 0.0
-          z: 0.0
+        origin:
+            x: 0.0
+            y: 0.0
+            z: 0.0
 # end-systems
 grids:
     core:
@@ -359,7 +359,7 @@ grids:
 # end-grid-MOX
 nuclide flags:
     H: {burn: false, xs: true}
-    O: 
+    O:
         burn: false
         xs: true
         expandTo: ["O16", "O17"] # O18 is not in many nuclear data sets.