I am considering the MSD Atomic EFi LS. Because it will automatically recognize 24 Ver. 58 triger wheel. It can be changed by me on a hand held unit if I change something no need to return ECM to a tuner. No harness rewire fee. Ect... Here is my question. With no transmission controller I would need to buy TCI or GMPP controller for I think $1000. Now I have a built 700r4 and a 4l60 and a T56 to chose from. Don't think I want another straight shift. Is the 4l60 worth the cost of a controller over 700r4?? MSD did a good sales job on me in the Hot Rod Power tour. Also like the GMPP control modules at a better price. BUT it will not support 24 reluctor in my LS2.