I think I hit on a system. The steel point gets Figure 8's on some silicon carbide sandpaper finishing at 1500 grit. That leaves a sharp point and sharp edges leading to the inserts. The point edges have a bit of gritty bite to them. I have a Gatco diamond kit that I can get a 22* bevel on the inserts with and get them razor sharp with a fine diamond hone. Diamonds leave an edge with a bit of a bite to it. I'm happy with the results. These are much sharper than out of the package.

Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats.