Yeah, I got tired of the cost, clogging, and how quick they wore out. So I switched to stone and ceramic. It's easy to clean a dirty stone with a scotch brite pad, and ceramic you can clean with a pencil eraser. I think stones are quicker too to sharpen with, because you can quickly clean them and they won’t get clogged like sandpaper. Clogs=less abrasion=longer sharpening time. And stones change the edge from convex to V, but I haven’t had any problems with a V edge, and my V edges are thinner than the factory convex edges.