Are you sure you'd need to ream out the holes? Sperzels need a 10mm hole, which seems to be fairly standard.
I started with nothing - and I've still got most of it left.
Did you know that the word "gullible" is not in any dictionary?
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Probably wouldn't have to ream the hole but those other mounting screws don't seem to be in the same location as the present tuners, and I wouldn't want to fill the old ones in and try to match the finish.
Since I got my Parker, I don't really play the others enough to put that kind of effort into them. I'm thoroughly spoiled with my Parker DF. I don't even have GAS anymore.
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