273 adjustable rockers on 360, very little oil to springs

Finished putting 273 rockers on my LA 360 this spring and pulled off the oil cap a few days ago and while running there was very little oil coming out of the top hole of the rocker. Even when I revved it up I could see it pulsing but just a very slight trickle at best. I shut it off and looked at the springs and they looked almost dry. Everything seems fine, but I remember the old stamped rockers throwing oil everywhere.

Is this normal or a problem? I've heard the springs need oil to stay cool and don't want to hurt my new pushrods or valves.

Running 5-30 synthetic oil (hot), good oil pressure
Previous stamped rockers threw tons of oil
273 rockers with stock banana shafts, cleaned up with new adjusters
Shafts oriented correctly
At most 2 thin shims per rocker used to center rocker on valve
Car gets a lot of spirited driving through mountain roads hitting 6k often
Comp's Magnum 280H cam with matching Comp springs

If needed I could open up the oil feed hole on the bottom of the shaft and better align the holes for the rocker arms. I just want to see if this is necessary before pulling everything apart.