Sorry it took so long to reply. First I mixed an amber base and hand rubbed it into the fingerboard. ( This seems to work best for me, because I do these projects at home and the fumes from sprayed finishes sicken my wife.) When it dried completely it was time to mask the neck around where the lettering would be. A thin coat of black paint was then applied. A second coat followed because wood was still visible. After lightly sanding, four or five (should have written it down) clear coats were added and sanded. Final results were acceptable, but nothing to write home about. If this had been a fretted neck, I would have masked off the frets with very thin tape (like Scotch tape) in order to get the finish as close to frets as possible without leaving a gap around the edge of the fret. Razor blade removal of the tape is easy. Most finishes are sprayed on, but if you do decide to apply them by hand, make sure you wear gloves and have a drop cloth.
Awesome, thanks!
I only have one bass at the moment, but once I get my new one in a few months, I'm going to refinish my current one. I'll likely get rid of the body paint first to see if the wood below is good enough for a natural finish, but if not I'll be painting it and very well may do the board as well. I'll post my results if I do.