Tanner. Good deal. My loop is a couple of miles and I don't afford it a cushion but who knows the difference it will make? Nice to see it didnt move. grin Unscientific, but I think continuous vibration is the culprit for my misfortune. If I have the time this weekend I may make a short jaunt laying on a pad then the few mile loop laying directly on the hard rubber bed mat and see what happens.