kinda silly demo, but fun none the less...one of the older bread board Timmy pedals from Paul C, up against a current circuit board model. To me, they're identical, but thought I'd put it out there anyway...since the board is simply a method to arrange components and pass signal, I don't see how they could differ...but who knows? maybe there is a difference...tried to keep it honest....I used an SG and Dr Z for the demo...