I'm working now on a pedal called Blackfire "Overdrive". Many people, who had built it, say that the pedal isn' t an overdriving system, it' s more like metal fuzz. That fired my interest to build this pedal. I built Joe's Easy Drive a while ago, and it was incredible, how much you can get fuzz from only one trannie. And it sounded good as ****!!! So, check this site out: