On the bench today I’m dealing with a super common “got all excited and then… oh no” moment: you buy vintage-style tuners and they don’t fit the headstock holes on a modern neck. This off-brand Strat-style neck came with holes a little over 10mm (mine measured around 10.3mm), but the Wilkinson vintage tuners the owner bought want a much smaller bushing size, with a 6mm tuning post. If you drop the stock bushing into a 10mm-ish hole, it rocks around, and that’s a no-go—you want everything snug and stable. In this video I walk through using conversion (reducer) bushings to step the headstock hole down so the vintage tuners seat properly. I compare two sets I had on hand (Musiclily and Dopro), test-fit them, and show what “tight but not crazy tight” looks like—because if you force six bushings that are too tight, you can risk splitting a headstock. I also share a couple practical tricks: lightly reaming the hole if needed, and using a C-clamp with leather pads to press bushings in flush without destroying your thumb. I finish with my quick alignment tip using a straight edge before marking screw holes, and why I personally prefer vintage split-post tuners for ease of stringing and tuning stability.