Got this unfinished body on the 'bay for a good price. Nice funky maple top with bird's eye and flame. I'm going use Birchwood Casey Tru-Oil to finish it. Questions: 1. It's got a knot in the lower horn, so I need to find a way to finish this much darker than the top? Is there an easy way to do this under Tru-Oil? Will the Tru Oil make it hardly noticeable or make it stand out? Should I sand the grooves away and have a very slighty different contour on the lower heel? 2. If I do try to make a darker finish around the back and sides, how do I make a nice sharp even line where the natural finish top meets the stain on the side? Please comment on how to deal with the scar most easily and successfully as well. Thanks in advance for your advice!