Quote Originally Posted by LeesEBR View Post
I saw that. Mike is justifying his test by claiming Hot Cams might have started using hardened shims in their kits since his original file test (which isn't accurate due to varying grades of abrasive material). I was merely suggesting he solidify that claim by testing a current set of shims.

If the lab says they're hard, I believe they're hard. The only other way to somewhat-accurately test is with testers files, but that will still only give you a hardness range which will likely give you the same results as the lab test.
oh, Gotcha