Lots of sanding today. Got it up to 320 and it feels nice and smooth. Ebony grain filler in raw mahogany is pretty ugly, fortunately I'm painting it.
Have some Duplicolor rattle cans, will have to find time to go to my parents' house and use them. Sandable filler/primer as a base to fill out any small imperfections that remain, and I will probably sand that to 400 grit or something. Then a flat black paint, and a clear lacquer.
Figure I can get a matte finish out of the lacquer by only wet sanding it to around 1500 grit.
Talking to my brother about making a piece to fit on the neck heel and make the transition to the body smoother. The stock transition is... inelegant, and Alexej pulled off the addition really nicely.