I had a strap lock fail whilst gigging last night, fortunately no damage but it made playing a bit tricky, until a point in the song where the bass was not required for a bar or two.
In the poor light I couldn't see what the problem was but on further investigation this morning, in decent light and with the aid of a magnifying glass it was evident that wear on the little retractable lug was the problem.
Mine have certainly seen a lot of gigs, so maybe to be expected but it wasn't something that had occurred to me to check. I've put a new set on this morning and will in future check regularly for signs of wear.
Just wanted to put this up as a warning to other Schaller strap lock users, it might save an embarrassing and potentially instrument damaging incident .
If you are out gigging tonight, go check em now