cam degreeing needed?

The whole thing is, bad enough with inaccuracies in manufacuring, but some cams are simply just "ground wrong" for what "we" are doing. I recently helped a local member on here with a "dog" of a cam, and it turned out "the guys" on here (It was another old outdated purple shaft, LOL) recommended a LOT more advanced than what MP had started with.

As I recall, when we pulled the "in use" cam drive and "guessed" at the offset with the new ones, there was something on the order of 2-4* difference between the two drive sets.