The new Trick Pro 1-V drive linkage. I've got a Pro 1-V myself which I love, but the linkage has a tiny bit of play in it that is more than a little annoying when playing the slave pedal. It almost made me give up on the pedal -- until Trick came up with this ingenious solution. It's basically an "inside-out U-Joint" (according to Trick owner Mike Dorfman) that eliminates the problem. I don't know about that, but it's an amazing piece of engineering to be sure!
