Why does anybody need to change the tuners? All 6 of my LP historics have Gotoh replica tuners on them, from the factory. They all stay in good tune.
Some say, "I need to add mass (weight) to the neck (headstock) because the neck's too light". May I suggest, adjust your playing style a little bit?
I do not like looking at the back of an R9 headstock and seeing those exposed holes that happen when changing to Grover's.
I've heard that adding mass to the headstock is beneficial to sustain and tone, with my tin ears how would I know?
It's a personal thing, I know. I'll keep my stock tuners for now.