Re: Whats involved with sanding a neck?
what's involved? lots of elbow grease. (do not apply actual grease from your elbows to refinish it though).
I'd start off with some super heavy grit like 80 or 60 for some really aggressive removal of material. Keep checking it for the thickness you want (might wanna work towards quantifiable measurements). Once it's approximately what you want, start working your way up the grits, to 100-120, 220, 320 and maybe 400 if you want to. Make sure it's evenly sanded everywhere, and when you're done, wipe it down to remove any sawdust on the surface.
You can use a power sander if you want to make your life a bit easier, but be careful about how much material you remove cuz it will go a LOT faster than just using your arms, and it will leave a profile that won't be as nicely curved as with your hands. You'll have to fix that using your hands anyway, or a curved sanding block
Then get some clean rags and start oiling it with tung oil, tru oil or danish oil. The application method is all the same, but tung oil and tru oil requires more coats/re-coats after the fact than danish oil which sets up and hardens more like a varnish than an oil finish.