Cagey
Mythical Status
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It doesn't matter. Tall frets can show up anywhere along the fretboard. Usually what I do is get out a Sharpie (or some sort of permanent marker) and mark them as I find them. Using the fret rocker, you want to check the far side, middle, and near side of each group of three frets. Mark where the high point is if there is one, and move on. Once you've done that, you get out the dreaded file(s) and lower the high points you've marked. GO SLOW! You can't put material back so if you over-grind a fret, you're screwed. It's repairable, but it's not any fun. So, keep the fret rocker close at hand and check frequently to be sure you don't go too far.
Once they're all level, you need to start polishing them back to get rid of the file marks. Start with something like a 400 grit paper, and work your way up until they're pretty. You won't remove much material doing that, so don't worry about it. You're just removing scratches.
Incidentally, you need to mask the fretboard off, or you'll be sorry. You're going to be grinding/sanding/polishing against the grain of the 'board, and it'll show up big-time if the 'board isn't protected. It's a pain in the shorts, but trust me - you wanna do it.
Once they're all level, you need to start polishing them back to get rid of the file marks. Start with something like a 400 grit paper, and work your way up until they're pretty. You won't remove much material doing that, so don't worry about it. You're just removing scratches.
Incidentally, you need to mask the fretboard off, or you'll be sorry. You're going to be grinding/sanding/polishing against the grain of the 'board, and it'll show up big-time if the 'board isn't protected. It's a pain in the shorts, but trust me - you wanna do it.