340 Engine Shake

Sorry to read of your misery, thanks for all the documentation.
Wanted to ask if anyone has ever had a cam company replace one because of wiping a lobe, or lifter failure?
Please send your cam back to the mfg. THEY will measure it and tell you if its within spec.
This info will help all of us!
I have. A hydraulic roller from comp. The surface hardening was inadequate after being tested. I sent it to them, they tested it, and sent me a new one.