There must be a proven way to keep these things in place, right? I have two pedals, one that looks like a normal piano pedal and the other is one of those squarish looking Yamaha momentary switch type pedals. The obvious problem is no matter how I depress the pedals they walk all over the place and it drives me crazy. My first thought was to mount the pedal to a piece of plywood but there must be a better solution.