when the awd lock is on, the fx stays at a 50/50 split front to rear until around 19mph I think, then reverts back to only kicking in when necissary, but can stay on no problem. you can turn awd lock on & vdc off & then punch it for nice 4wd rooster tails, drive it like a jetski, but also like a jetski, imagine you got no brakes, you gotta drive like your on water, theres no stopping, just costing down, leave run off room or you'll be another one of those guys who curb there wheels or worse...