Rarely in this "game" do you see a compound (AAS or otherwise) that seems to effect different people in not only such a dramatically different manner, but in a decidedly and completely opposite manner. I'm at a loss as to how one compound can have such a drastically different effect on users to the point that some become drowsy beyond belief and others swear they're on speed. I suppose you know right away which category you fall under, but does anyone know A) if there's a way to gauge in the least which one you'll fall under (ie, is how you respond to ECA, etc, any indication??) and/or B) how is it that such a discrepancy can exist within the realm of one single compound?