I have the same RRS/Bogen setup. I agree with you that the bolt should not be used if you switch between tele (foot. fore/aft) and camera body mounting (side to side). BUT, the top of the Bogen swivel setup is not flat and has cork in a depression. I'ts always working loose. Some may be my fault as I put the camera/lens on the monopod over my shoulder when I walk which stresses it somewhat. I'm gonna drop it if I don't fix it. I was going to try epoxy, what did you do to fix it?