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 locking tuners are a bit cheaper. I would love to hear some positive reviews for the Grovers. However, it seems like the majority of people here use the Schallers. It seems like both tuners can break strings relatively easily. Any info would be appreciated!