Location for oil holes on rocker arms?

I just pulled mine out and check the top hole and it will take a .078” drill bit. I’m curious if they use the new front hole to go into the adjuster threads for pushrod oiling. On mine that hole is drilled in from the top at an angle, which would be tough on tooling. Using new hole might kill two birds.

2E1383D2-37AC-49DE-9394-D5FB9BF4CE7A.jpeg

View attachment 1715662990

E15847D6-6BFF-4946-BF22-27A104A26F7D.jpeg