Ok, So I know the Rico Drilling is suppose to put the ball into a early roll... and the CG is 45degree's from your pap, and the pin is middle of your grip.

my curious question is, if you move the pin higher, say right under the fingers does it just make the ball get down the lane farther?  or does it create a whole different reaction?    

I'm thinking about doing this with my undrilled Tropical Heat....  to tame down the backend reaction....
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Moving the pin from your center grip to below you fingers would give more length because your moving the pin further from your PAP. The weight hole would then be closer to your thumb.

The Rico pattern will very by bowler based on PAP.
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My understanding of the layout is the amount of core manipulation.  You're putting holes on top of the weight block, and a large, deep one in the side.  This creates a lower RG, and a higher differential, which creates the early but smooth reaction you get from the layout.

If you move the pin up, you simply take some of that dynamic away, and more of the gripping holes go on the side of the ball, which just increases the differential.  This will make it rev up a touch later, and be more responsive to friction.

The "Rico" is not a PAP layout...it's core manipulation.
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What would be the recommended drillimh layout for a lefty throwing down and in on the 2nd arrow on a fresh ths with a hammer taboo