DIsc Detainer How To, 102: Rear Tension Guttable Lock with Front Tension Pick - featuring GerdaHSS
Channel: m.c. explores ...
Date: 03/04/2023

Have a front tensioning DD pick? Have rear tensioning disc detailer locks? You can open that lock.  The approach requires a swap from front tension for all disks BUT the one at front being used for tensioning - and then swap to tension a Zero cut disk - possibly at the rear of the lock but any zero cut will do. Want to see those terms illustrated? I did - so made this video.

00:35  -   0. a view in the Chamber to see the disks 
01:15 -    1. A look at how disks move inside a DD to see how the front to rear tension swap happens (you'll see why - i hope). 
03:26 -    2. Also a bit of a view of the difference in how disks are turned by zero cut vs any kind of cut in a key. 
05:56 -    3. a look at what's turning when the DD core aligns and turns in a padlock body
06:38 -    4. a demo pick and gut
11:36 -    4b - gut part 
13:50 -    5. what good can come from a fail open with DD's that pin tumblers don't afford
16:40   -  6. getting the lock cap secured so can't just undo the cap.

Hope that makes more DD's more accessible for you with the tools you have.

Your questions welcome. Heck i'm just going by what my questions have been about how these things work - if i can help with yours, happy to do so. 

More DD how-to's in this play list https://www.youtube.com/watch?v=tspXnYdzosA&list=PL-5RpErU98_yaZFpCsZ1cr3otk2ZAEmvM

Inspiring videos that used this approach on this lock:

LockNoob's (@LockNoob) https://www.youtube.com/watch?v=BiKbBsgfnRU
Yabende's (@yabende) https://www.youtube.com/watch?v=GZjTBRZuzR8 
Albert Lebel's (@AlbertLebel)  https://www.youtube.com/watch?v=Pq6DGEt4QqE 
Cripix's (@crispix) https://www.youtube.com/watch?v=4iTdU2WlklA