Ok, this was a silly mistake I know, especially as its my fourth build. I didnt pay enough attention when sanding the radius into my fingerboard and managed to get a dip in the middle at around the 7th fret to the 3rd or so. As its a thin board with markers already installed there didnt seem enough material to correct it completely with sanding. But I managed to get it down from about 0.7mm to about 0.4, which is where it stands now. The question is, when I come to leveling will this be a big problem? Is 0.4mm from the higher frets too much to lose before crowning? I'm using Stew Macs highest wire (1.3mm crown). Let me know what you think!