Kennedy and I discussed the use of both an Edge Attitude along with a reprogrammed ECM, and he indicated that it's not a good idea. I have a Kennedy ECM in my Lil Red project truck that has a switch-selectable 2-position switch that allows switching between a +100 and +300 or thereabouts program. The Attitude is still there, but disconnected.
I've thought about having the program changed to include a stock program and the race program so I can use the Edge in the stock setting. I'll have to run this by JK to get his opinion. Jim