I feel like I just became part of some underground group :-). I'm in the know...

Glad to hear these have been working well for people over a period of years!

My strap is sort of thick where it attaches, so I have to kind of work the washer inbetween the strap button and the strap. Once I get it in right, it seems to pull itself into the position it needs to be in, which is good.

I'll keep an eye on it before I get fully confident with it. I should put my flimsy Fender strap on there secured with one of these and see how it does.