Another quick tip... for those of you who are mounting vintage style tuners where there is a bushing that is press fit into the face of the instrument, and then the tuners are screwed to the back (as opposed to the modern style where the face of the headstock has bushings that thread through the headstock and screw down onto the tuner itself):
I've had issues in the past getting the tuner post perfectly straight through the round bushing, occasionally rubbing against the opening.... not enough to cause issues, but just kind of irritating in an O.C.D. way.
When I put these tuners in place, to keep each centered and not flopping around loosely, I wrapped each post with a little strip of paper, maybe 1.5-2" long just so they would sit snuggly inside the bushing. It made it easier to line them up in back, put a mark where each screw should go, use a small awl tool to make a divot, then drill a tiny pilot hole for the tuner screws.
Mahogany is pretty soft, but hard maple or especially rosewood, you will snap the head off of those tiny screws in a heart beat (which suuuuuucks) if there isn't a pilot hole for each screw. Once those holes are aligned properly, the tuners install like a breeze and every single tuning post is perfectly centered in the bushing.