Well mine shifts into OD when I am at WOT. I used to do it before I got on here and read how bad it is for the tranny and that OD could break so I stopped doing it. And when I need to pass someone I dont turn OD off with the button. I just give it enough gas to where it downshifts to third on its own, then when Im ready to cruise again I left off the gas and it will shift back into OD.