Anyone still using this Camshaft trick?

MopaR&D said
I'm not sure, but the cam I had ground by Jim was a hydraulic roller and he still recommended going with a fresh core over a regrind. Probably also has to do with the specs we agreed on, it's likely the profile wouldn't have been re-ground easily on a factory camshaft. But he specifically noted that preference was in relation to the hardening issue.

It's probably not a big deal, he wasn't adamant about it and plenty of people here on FABO are running reground cams without any problems.

I think it has to do with how much they have to grind for the desired new cam specs. Ken at Oregon Cams told me the same thing. When I told him what specs of the cam I wanted, he advised against a regrind because he said it would have gone past the hardening. I don't think it's an issue with milder regrinds.

Ken even took it further and said there are some factory cores with deeper hardening than others. He rattled off casting numbers of those that have the deeper hardening.