Brad here’s one I pulled out of the hemi after a couple years. Hard to see but it was slowly wearing into the teeth. You can see how the what I call edge is worn from looking down from top. The edges are very sharp and there’s a little burr on the bottom edge. This is a solid roller with a melling HV pump. I changed to a melonized gear from Hughes a couple of years ago and pulled it out last fall and it and the cam showed zero wear. I know they say never use on a used cam but never say never I’ve didn’t have any problems.

Mike