So, how do you get the fret ends smooth and flush with the edge of the fretboard without gouging the edge of the fretboard. Even when I cover the edge of the fretboard with masking tape, if I'm really going to get the end flush I'm going to dig into the finish on the edge of the fretboard. I'm sure this is a skill that takes time to develop, but is there a quick tip for a rookie that will help me move a little faster on this job?