I don't have any of Ken's wheels yet. I really have more wheels than I need, or can possibly wear out. I will be chatting with him in Pittsburgh. Of all the wheels I have seen and used in person, I could detect no difference in how the same grit cut. I was talking with Ken on the phone Monday and he commented that the radius edge has one advantage, and that is if you run off the edge of the wheel when sharpening a gouge, you don't get the divot in the wing that we are all familiar with. I did run off the edges with the 1 inch wide wheels, but haven't had that problem with the 1 1/2 inch wide wheels. I still don't get the side grind option, which I think the carvers and maybe skew users prefer, but being a bowl turner, 'skew' makes my sphincters pucker maybe more than McNaughton coring tool, and at least I can core....
robo hippy