Hey Bain, are you using them now??? I would like to get some wide spread opinion. I will definantly give it a shot. It could answer my problems, but I intend to do it in the future, when I have an extra bucket and perlite, to do it up. Then I will throw a clone in there and give it a shot. I was even thinking of using it with 16 oz. cups. If you have exp. with it, I can use dirt right? It's just about the res????