schaller locking tuners

I'm looking for a drop in replacement for my tuners on my PRS SE cu24 30th. I have looked at both the Schaller and Grover locking machine heads. I read a bunch of reviews on Amazon. One review said that the chrome on the Schaller machine heads was a little fragile. Also, the Grover drop in...

Hi everyone, I order the Schaller M6 locking tuners for my PRS Tremonti Custom SE but I have absolutely no idea how they work because I've never used locking tuners before. Not to sound stupid but I can't figure out how to thread the string through the peg. Despite loosening the lock behind...