I've got a 97 Corvette with recessed straplocks. The one on the upper horn slips. Got it replaced. Still slips. It isn't my strap - I use the same strap on my other basses and never have a problem. I've used diffferent straps, it's definitly the female end of the straplock that's giving me the problem - go figure . I believe it's the weight of the bass. Any suggestions??? I'm beginning to feel hopeless out this situation. It's beautiful bass so I'm not eeling all that enthusiastic about duct taping it - I've seen some people do that. HELP!!!!!!!!!