While it's low, .010", it is not insignificant. (Mo originally said that when the PSA strength is .008" or greater, you should take the PSA into consideration.) Also, with many common drillings, the differential and the PSA strength will increase, PLUS P3 and P4 weight holes will also increase both. If I were you, I'd make the driller takes the PSA into consideration.

My proshop has one for me already. I need to drill this week

It's a cover dominant ball so it's going to read the back of the pattern harder.

I did post here or at BC that my driller drilled one 6 weeks ago. He went with a 2" pin to PAP with the PSA stacked but it still moved to the thumb post drill when we put it on the Determinator.

I'd treat it as a symmetrical since the int diff is so low anyway. Large balance holes will affect the PSA so you can tweak with size and location post drill.

I'm sure you'll want to burn some tilt but remember symmetricals lose tilt sooner than asymmetricals anyway. So whether we treat this symmetrical or as a true lower diff asym it's still going to lose your tilt for you faster than the high end asyms.

Reviving an old thread.. I have a zero gravity that sits at home alllll the time...yall have my interest peaked in putting an x hole somewhere in between p3 and p4 ...any input?