Improper engine break in.

They don't baby them for 500 miles when they run them in on a Dyno. This is 2015, not 1945.. Modern engine materials and technology reduce run in time and run in problems.
I don't change the oil either right after the cam is run in.. why would I? If the engine is clean when you assemble it, what would you expect to find?? I just check to see if there is any sign of metal in the oil.