I'm a big fan of flushing out the machining and break-in debris. I'll often OCI a piece of equipment in the first 10-20 hours (or mileage equivilant). After that, I just follow the normal OEM OCIs.
I did so with my 2010 Fusion at 1500 miles and did a used oil analysis, just to see what was in there; as expected, a lot of "stuff". The subsequent used oil analysis at 7.5k miles really dropped the metals. After that, at 30k miles, things were pretty darn normal.