I can only answer part of your query.

Pro-pins are balls with large pin-CG distances, on the order of 5" or more. I assume these are the ones you like.

I've recently read somewhere (forget exactly where; sorry) that pro-CG balls are balls with a marked Mass Bias and where the CG is well off from the Pin-MB line. Usually the Pin, Cg and MB are all in-line or close. With a pro-CG ball, I assume, if you're looking at the Pin as being at the top and the MB at the bottom of a picture, then, a Pro-CG, would have the CG either well to the left or well to the right of that perpendicular, North-SOuth line made by the pin and the MB.

One advantage might be, for a righty, if yo uwanted to shift the pin-MB line towards the PAP, then the CG might still be in the neighborhood of the gip center; so the drillign wouldn't need a weight hole.

On the other hand, if the CG were to the left, and the pin-MB line were closer to the grip center, then the ball woudl need a weight hole near or around the PAP or placed where it might do the most good, depending on a few other factors.

Don't forget the top weight reflect how much must be taken out to make the ball legal. Pro-CG may allow you to take out more weight (would change the size of the weight hole needed) and, thus, affect the core or the static weight more, depnding on your philosophy.

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"None are so blind as those who will not see."