Mike, I have the original version. The cheapest one. Have a bunch of knives. The Worksharp is is great at what it was designed to do. Sharpen blades.
I put an 80 grit belt on it and tried rough shaping a newly glued up grip on the lathe. Only did that once. Really easy to go way too far, way too quick.
If you like a smooth as a baby’s butt cork grip, a 1200 grit belt on the Worksharp, with grip turning on the lathe, will do it up just fine.