Hi Allen, I can't add value to wear issue question, but ask what method did you use to take measurements...dial gage on top of the pushrods? "My measurements are .002" and .003" wear for lobes 1 and 8. Lobes 4 and 6 are .008" and .009" worn. The other 4 are .012" worn (0.248" lift)." Mike Godley