I got a Republic duolian resonator with a slotted headstock, which I like a lot, but I feel like the tuners are a little bit flimsy (the shaft of the peg seems a little small in diameter) and not very smooth. Can someone tell me who makes good quality replacement tuners? Gotoh? Grover? Thanks...
waverly would be what your looking for with a slot-head.
Gotoh makes some good ones also, i put them on all my guitars but they aren't as popular as waverly for a slot-head.
need more gear and a lot more talent(courtesytuxs)
The tuner shafts on any replacement tuner will be the same diameter as your stock tuners. The only slot-head tuners with larger shafts are for classical guitars, and you wouldn't want those for steel strings.