I don’t play guitar (yet) but I play mandolin. I have a K&K pickup installed inside my mandolin and it has a BIG end pin where a cable would plug into my pickup and then go to an amplifier. With this Big end pin, I have an issue of keeping my strap attached as the strap hole doesn’t go all the way around the end pin. I know I could cut a bigger opening but I don’t then want the hole to be too big so it is then loose.
Anyone out there in Ben Land have a good strap LOCK mechanism they use on their instrument?