Yes, this is a great and inspiring tread. CB looks great. Now I almost want to refinish my own Walnut.

Maybe next year.
Did you manage to find vinyl sealer, or use the PPG finish as a sealer . . .
For my refinish I’m going with Glasurit, a 2k automotive similar to PPG. The recommended mix for this Glasurit clear is with 10% reduser.
When I previously finished the fret board I sanded it with 320 paper, and added 20% reducer (double of what is recommended so I thought that would be enough). Recently discovered it didn’t actually stick that well after all, and with a chisel bladed knife it was not that hard to peel of the finish in one piece between each fret.
So, now I’ve done some adhesion tests on a piece of maple.
First of all, with the Glasurit I have to add much more reducer - 100% seems to work well.
Maple is a very non-porous wood, so sand with no finer than 220 grit. 120 grit even better - it won’t show anyway.
Also, the thinner the coat the better it seems to stick, so first sealing coat very thin. Then some more coats before sanding.
Just though I’d mention it.