My shooting bench top is made of painted plywood. Using sandbags is not an issue, but when using a bipod I've read here on the forum that the bipod feet can chatter across the surface on recoil. However, I don't remember anyone suggesting a fix other than to pre-load the bipod. That got me to wondering, has anyone got a solution in terms of something placed underneath the rubber feet that is still rock-solid but allows smooth travel on a heavy recoiling rifle? Would something like a single layer of a towel or something similar work?