A word of caution about the new Schaller locks with the integrated screw, the screw is larger diameter than the stock hole in the guitar (for PRS at least). Schaller claims it is self tapping, but I would not install without some minor prep to the guitar. When I installed on my S2 Custom, it cracked a nice piece of finish off around the screw because I didn’t make the hole bigger first. What I did on my others was to use a drill bit just smaller than the threads on the Schaller screw, but bigger than the stock hole in the guitar, by hand, insert into the hole and rotate in reverse to ream the hole out, about 1/2” deep. If you rotate in the normal forward/clockwise direction, the bit will bite into your finish and can pull it up and crack it. That prep should reduce the expansion stress near the surface from the new screw enough to prevent finish damage.