Yeah, I've actually posted quite a bit in that thread... :) Not trying to contradict you or say that you're full of it or anything, I'm just saying my experience differs and that if I experience it, it's possible others will as well. The first amphetamine I ever took was 10mg of adderall. I didn't start abusing amphetamines for a couple of years after I had started taking them, actually.As for how long it lasts... well... I don't really know anymore, frankly.