So i've been trying to get Any AOSP roms (CM12 preferred) Working on the D803 with no success at all, I actually had to KDZ back to stock after completely fudging the system partition. Any good guides?
I have the D803 as well. Have you tried AICP (http://www.aicp-rom.com) I've been using it for a month and have had a few minor annoyances but for the most part it is really good. It is CM12 based with a few extras. Quite stable, good community and active moderators/owners on G+. Builds every second day and best of all: it supports the d803 without you needing to tweak any scripts or kernels. http://dwnld.aicp-rom.com/?device=d803
+Matthew Gagnon 26 would be perfect for that if you are sub ohming. I wouldn't bother with 24 until you get a little more experience as it's mostly for low sub ohm and the ramp up time is long, especially on a stainless mod like the Magneto. I would grab some 38 and 26 if you can to see what you like and you can twist 28 or 26 and do dual parallels and such once you get better at it.