So this seems like a silly question that is very obvious, but someone will know the answer to it.
I've got a mandolin that I'm satisfied with it's tuning machines except for one detail: they are pearl buttons when I would prefer black ones.
I've seen many buttons online, so I'm curious if it is an easy switch or if I need to be careful about ordering the wrong brand (IE. a Gotoh button won't fit a grover machine, etc.)
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