My mileage does not vary.Quicklinks? I've got some I've many times over numerous chains, removed and refitted regularly. Admittedly, I use the SRAM branded ones less these days, as they're more of a PITA to remove without the tool than some, but still using a couple,
There's one brand I've used....maybe YBN(?) that do tend to more single use. Pin prone to popping out after a couple of uses.