had 1 guitar with the Dunlop type; didnt like it
Much prefer the rubber washer / Grolsch or other by far.
They tend to spin the strap button though so you gotta check them to see if the screw is backing out.
I have never had any problems with the rubber washers. I have had the screw strip out because the guy that installed the locks did a bad job. I have straps on all my guitars because I play on a concrete floor. I play most of them on stage. A minor problem like a strap failure could really make for a bad time of it.




