Location for oil holes on rocker arms?

Fundamentally, I have no problem with the hole on top, like they originally had it..... which is where it is on the rockers they copied...... the Comps.

Actually.......both the BB and SB PRW rockers are patterned after the Comp BB rocker.
The Comp SB rocker actually uses a body with a different profile....... and the oil hole is on the bottom.
The BB has it on the top, but the hole is not lined up with the oil groove on the inside of the body.

Top- Comp SB
Middle- PRW SB
Bottom- Comp BB
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