OK, just had to post as I could never find anyone who's done this in searching the site:
I finally got the balls to bastardize my model-year 2000 JS
-1000 as I hated the neck. I have small hands, hated the thin frets (coudn;t seem to grab harmonics) and missed my old 540R I bought in 1989 with a neck I had sanded down a bit to make thinner with stock Jumbo frets.
So I bought a 1987 MIJ Wizard neck in mint condition on ebay that was off from a 540 Sabre. 22 frets. (You can't do a 24 I learned). The neck had no fret wear except on the first 3-4 frets and then only a tiny bit. It looked ike it was kep in storage. No cracks either on the nut screws or any dings, anywhere.
Let me just say it installed perfectly. I followed Rich Harris' IbanezRules-dot-com set-up instructions as I went just to refresh and make sure I did things right.
Results: the neck screw holes lined up perfectly, even after 13 years (computer drilled obviously). I left the nut as is; I left the small shim in the neck pocket of the JS1000 where it was; I left the truss as is you may experience differently). The neck has no bow/relief and is flat as a table). I had to raise the trem a bit and adjust the trem springs in the cavity. I also had the right idea to remove the saddle-shims on on the the JS1000's lo-pro edge on the middle four strings (just sticky tape holds them in place. Cleaned that off) as those saddle-shims are for the more rounded JS
Other than that this thing has the lowest action of any guitar I have owned, and no buzz ANYWHERE... and I mean anywhere, from the open strongs to the 22nd fret. ! I can bend 1-1/2 steps and no fret-out all the way up the next! It is UNBELIEVABLE and plays like silk.
Anyway, it was a hard call to make, but hey I had stopped playing cause I hated the JS
stock neck and now I'm so inspired and the Wizard neck has me grabbin harmonics I could ever seem to get on the JS
neck (go figure??).
So if you thought about it, my experience went fantastic. I want to play all night!