Haven't found much in the way of instructional resources on this technique. I think I'm well on my way with it, enough to start incorporating it into some stuff I do in public, but the more you know, the more you go. One of the few I've found is www.peterduncan.net . If you haven't checked it out, he has several mp3 samples online that only take several seconds to load. He's where I'd like to be soon with the technique. Was wondering about your double popping experience and if you have found any resources available to the masses? One local teacher was like, " "