Any progress with building one of these, Hellfire? It's interesting from a scientific point of view, but I really wouldn't want to use smaller rubber pads than the 8" DMpad ones!
I was looking to build some bar triggers and I think I have found a way to make them look pretty as well. I was looking for info and checked here first of course. I was thinking about just mounting a piezo inside the bar and just isolating the mounting method from vibrations. Any reason I should use the switch method instead?