Re: Washers and bottle seals as strap locks.
Can't stand those straplock systems as well, they make irritating noises, need you to modify your guitar and will come loose in the end because of the extra leverage. It's a bad system. I use Grolsch washers as well, I don't know how hard it is to find those beers in the USA but it's very common here. Still I don't like the look of them, so I'm keeping my eyes open for some simple black ones.