my rig did the same hard shifting. even after what i felt was a sufficient break-in period for the edge. its pretty disconcerting. i spoke to a diesel tech who advised me to get the sct tuner with a code that i flashed my obd with & that dialed it in for the most part. very rarely shifts hard anymore. but regarding the white smoke, my truck's at the dealer right now with the edge removed and i'm afraid he's gonna say he doesn't know what else he can do. i'm gonna have him look at the egr cooler specifically, and the injectors based on what i've read here. any other ideas out there? is it poss to have a blown head gasket or malfunctioning egr that doesn't trip their diagnostic equipment?