I have a Browning Maxus, never had any real problems out of it. It had Duratouch on it and we did that whole ordeal. Since I've gotten it back, I've broken two shims on it. You put the stock on, tighten it down, and when shooting... the shim walks up towards the top of the shotgun and may be sticking out 1/16" of an inch between the stock and the receiver. I'm guessing this makes the shim get pinched and it snaps it when you keep shooting. Keep in mind these are shims that are just a ring of material, not a solid piece with one little hole in the middle. Has anyone ever encountered this? Am I tightening it too much... not enough? Scared tightening it anymore and it would snap them right from the beginning. This is an issue because they don't make them anymore, and I'd really hate for the gun to disappear back at Browning for a year...