if I'm not mistaken.....isn't Super Symmetrical drillings for Mo Pinel's Vangaurd core ?

If not, it's for asymetrical balls, so it'd suit the GP2 .....the AA is symetrical
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JEFF
"Chance to squint at a sky so blue that it hurts your eyes just to look at it."

I put an asymmetrical drilling on the Rule after I plugged it.  The ball was very smooth off the break, but was oil sensitive.  I was never really fond of the Rule, so I will try it on another asymmetrical when I get the chance.  Very good drilling though.  Just pick your pin distance from your axis to determine the amount of flare you want, then put the MB on your grip centerline.
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*Erie Community College bowling*

Buffalo bowlers are the best all around in the country.

No, I was taught that you choose you pin position by the amount of flare you want, then just place the MB on the centerline.  Heard nothing about the pin being on the VAL...
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*Erie Community College bowling*

Buffalo bowlers are the best all around in the country.

Super Symmetrical drills place the psa on the grip centerline with the pin generally under the fingers (1 to 1 3/4" above the midline).  You may shift the pin to axis distance to obtain the desired track migration.
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Pin to axis? why would I need to know that when I know where my center of gravity is?