I was compounding with my flex 3401 and orange lake country smart pad. I was using uber compound. My usual combo and never have problems. I don't know how to describe other than saying the back of the pad exploded. It left stuff on the Velcro backing plate that does not come off easy. Anybody have any advice. I am out pad and a backing plate at this point. I don't know how to fix the backing plate. Maybe some night I can use tweezers and try and remove the stuff while watching tv or something. It will take a while.