Hey.. I've tried alot of doses, Ive tried A-bomb a couple of times, Hand of God, Nitrous, Alcohol, Peyote, Extacy and probably some more, plus ive tried some "doses" in Brainwave Generator too, and the only thing that ever happens is that i feel kinda numb, mostly in my back and i feel my muscles all over my body kinda jump. one time with a BWGen dose I felt like I was laying on a beach with waves flowing over me, only i was a part of the water to put it that way..
I usually lay down in my dark room, use a t-shirt or a (unused

) sock or something to cover my eyes and I try as hard as i can not to think about anything except concentrating on the sound, it never works like i imagine it should.