Some progress. Next time I’ll use a fret slotting blade in the table saw (which means I’ll have to buy one, and build a jig for it, and all that). But that’s better than recutting each slot six times with four different saws.
Still need to clean up the fret ends, and dress them, and probably do a bit of sanding and polishing on the board itself. Clamp it to a flat surface to help remove the backbow. (It doesn’t help much, but it’ll probably sit for two weeks anyhow.) Oh, and find a way to get rid of all that cat hair.