I was just watching youtube videos and reading threads about converting basses to fretless. Do you think it would be possible or advisable to just sand down the frets and refinish the fretboard when they're flat or just re-oil as in the case of a rosewood fretboard. I was thinking you'd even be left with the fretwire in the fretboard to act as fret guides. Hope this isn't too dumb of a question. Kind of like the ultimate fret-leveling job.