I don't think there is any better or worse tuner for a guitar based on design. The string trees are there for Schallers too. The newer Schallers are graduated to avoid the need, but overall Grovers are fine. What are you replacing? Is the neck already drilled for tuners? Are mounting holes already drilled? The Schaller/Fender tuners are a PITA unless you are mounting in a real Fender neck. Same with Sperzel. I like them, but what is so hartd about doing the set-screw like Grover??? So much easier to install.