[Samsung Epic 4G Touch] vanberge:
I wanted to share my experiences in making the most of the FF11 build. It's a setup that is shaping up to give me 48 hours of battery life, and one that I'm really happy with from a performance perspective. I did not develop anything referenced below, all credit goes to the devs.

I put my configuration as my signature, but I'll go through more detail here in what I did. This step by step guide assumes that you know how to get zips onto your phone and flash them with a custom recovery, and also assumes that you know how to use Odin. With the flashing going on, standard disclaimer applies. I am not responsible should you brick your device. But, take your time, read the threads, and follow the directions in them and that should make that a non point.

Step 1 - Base ROM Install

Back your stuff up if you want to keep it, and then use sfhubs one-click Odin stock rooted FF11: http://xdaforums.com/showthread.php?t=1705730

Follow his directions to install and you're stock rooted FF11. I highly recommend doing the factory reset/full wipe version instead of the modified no data wipe version.

Step 2 - Kernel with Custom Recovery and init.d Support

Next, we need a custom recovery to continue the flashing. We also need init.d support for later. With those requirements, I am recommending Agat's odin version of the FF11 kernel repacked with AGAT recovery. Follow his instructions here and install via odin: http://xdaforums.com/showthread.php?t=1702388

Step 3 - De-bloat

Now with a custom recovery, we can download and install Calkulin's universal bare ROM converter, found here:

http://xdaforums.com/showthread.php?t=1535776

Note the list of what it removes, in case you want any of those apps.

Step 4 - Install your Apps

Get your apps installed from market or from Titanium backup or whatever else. I found it better to do this ahead of time, because step 6 will be more effective.

Step 5 - The S3 Launcher (optional)

This launcher's 1.5.1 version is incredibly smooth, stable, and works very well in this ROM configuration in my experience. I drastically prefer it over the stock touchwiz launcher within FF11. You don't "need" it, but if you want it, download either the 4x5 or 5x5 1.5.1 versions and install per instructions (the beta versions have been reported slow/buggy, so stick with 1.5.1 IMO). Found here: http://xdaforums.com/showthread.php?p=26392738

Step 6 - Kobridge Tweaks

Download and install Kobridge Stock FF11 tweak set from his thread here: http://xdaforums.com/showthread.php?t=1668853&page=76 - You're looking for FF11KOB_TWv3.4.zip which is attached to his post. That zip contains several zips within, so open it up and extract them and flash whatever version you choose. I recommend aggressive (Named FF11KOB_TWv3.4A.zip) because it maximizes the battery savings and still performs very well. When you reboot your phone, you should see your phone go through an "Android is upgrading" process - This is the kobridge tweaks doing a zipalign/optimize on all your apps - so that is why we installed them early in step 4!

Step 7 - Battery Saving OS tweaks

Turn off screen vibration (Settings -> sound -> vibrate on screen tap [uncheck] )

Turn off notification LED which can keep phone from deep sleeping (Settings -> display -> pulse notification light [uncheck] )

Make sure auto brightness is enabled

Make sure wifi is set to never go to sleep (Settings -> wifi -> advanced -> Keep Wifi on during sleep [always]

Step 8 - Enjoy a fast, light, stable, and efficient ROM configuration

Nothing earth shattering in this guide. Many people use many of these tweaks already, but this combination is something I find pretty close to perfect balance between performance and battery. Hope you enjoy it too!

.. edit ..

Added some pics