Re: Grover Locking Rotomatics Vs. Non-Locking Rotomatics
They make it quick to change your strings, and they allow you to keep the number of wraps to the bare minimum, which IMO helps with keeping the guitar in tune. That said, they won't help at all if the nut is not well made.
The Grovers are great if you need to replace other Grovers, but I do prefer locking, height adjustable Gotohs on 6-in-line heads. They allow you to equalize the break angles of the strings over the nut, which I think helps a lot on a vibrato-equipped guitar. And they also look pretty much like old-school tuners, which I prefer.