I have always placed my pin just under ring finger for my "heavy" oil balls. It "usually" works pretty good although on flooded lanes the ball may not get into a roll or even keeps going. And they all show "low" track.

I just tried placing the pin right "in" the middle finger on a "medium" ball( pin closer to track) and I found it to grab pretty early and have a nice backend. It also shows "hi" track now.

I would like to try this drilling on my heavy oil balls and I wonder if it would work better than pin close to PAP? Thanks!