Yes, we do know about MAFs, but my point is that after switching to a Custom OS and making no other changes, the car ran just like it did with the original OS (according to data logs). When I switched to SD, with no other changes, the LTFTs jumped a bunch. There is obviously a difference in the way the system processes the VE table in SD versus Mass Air mode. Nothing that can't be corrected with a little tuning, but tuning does have to be done.