Dave ,did you also drill (increase) the passage down the center of the DR cam? I think I remember that was also undersized compared to stock.

I pulled this dinosaur up so I could do a correction.  Since I initially did this post, I have changed my opinion about those oil holes in the cam lobes.  Although they don't seem to have any effect on cam lobe or rocker longevity, they do seem to have a big effect on the main bearings.  Especially the left-hand main bearing (large roller bearing).  I have fried two of those main bearings.  Turns out the left-hand main bearing gets all of its lubricating oil from the cylinder head drain.  Specifically, the drain off the exhaust spring pocket (front left-hand side).

It dawned on me that this old post was lost in the abyss, and I didn't want anyone digging it up and thinking it was cool to leave the holes out of the lobes.  

Drill the holes, they're important!

Grease worm infestation !