Just to point it out, in case it got lost in the fog......

The OP had no symptoms or indications of any kind of cam problem.
We spoke on the phone and he told me the last time he had the car at the track it made its best runs.

Why the pan was off was to look for the cause of the erratic, and lessening oil pressure(and I believe that problem has been identified).

He noticed the irregularities on the cam lobes when the pan was off.......but it wasn't anything he was looking for.