This is really a two part question... 1) I had my strat refretted in the late 90's and the luthier pointed out how thin the rosewood board was in the upper register. It is almost paper thin on the bass side, and slightly thicker on the treble. I bought it used when I was 15-16ish, so that was something I never even knew to pay attention to until he pointed it out. IIRC, I'm pretty sure he mentioned it might not be able to be refretted again... based on the pics below, do you guys think it's possible or not? It definitely looks like he filed the tangs on some of the frets down so they would fit. 2) The 19th fret has a quite significant gouge in it and absolutely needs to be replaced, but I feel like the others are in pretty good shape. Is it ever advisable to replace a single fret, or is that something that needs to be done all in?