@MichaelW I'll only use CRL now for that type of switch. The Oak Grigsby are pretty terrible now and have been for a good few years, I've personally had three literally fall apart very quickly through regular use.
Feline guitars do all the fret and nut work on my guitars and Jonathan who is the main luthier there won't use them either. When I was moaning about one failing in my strat he said he'd seen quite a few with misformed or bent contacts which don't connect properly and also had some which failed really quickly.
I'm surprised to hear about
@andare's dodgy Switchcraft tbh. I've never had a problem with any Switchcraft I've had.