B3 Kit - Shaft Modification / Possible SM rocker issue.

Got my black friday shipment of the finest chinesium from SM. Before I started getting too deep I got my measurements out to Mike at B3 for a correction kit. The changes will require a .100 offset in my rocker shafts, so I started cleaning and inspecting the rockers.

The shafts only have a single hole at 6 o'clock. No banana grooves, no second hole for pushrod oiling. Now, my current lifters and the arms support oiling through the pushrod, so that's only possible issue down, but the lack of banana grooves is concerning.

So, I'm looking to bounce all this info off a few other people. Thoughts on if I should modify the SM shafts, or pick up a set with grooves/both holes.