I think the key there, in all the good solutions, is the blending, feathering, "finessing" of the finish to bare wood.
I've got a Fender made J bass, and its finish (poly razz-ma-tazz) began peeling from the sides of the fretboard (rosewood) as soon as I got it, so dont forget to really prep, and degrease the sides of the fretboard with naphtha if you're gonna have finish on it. I fixed up the J bass with some superglue dripped behind the lifted up sections, and/or removed the sections and replaced the finish with super glue, leveled and buffed. Its "ok" but is still peeling. Not one of Fender's better finishes, but... maybe I'm lucky with only one dead note on it. Someday, a Warmoth replacement.