Stacked leverage, for some people, DEPENDING greatly on their PAP's exact location, often represents the strongest pictorial representaiton of their drilling, as you look at the pin and the CG's location with respect to the drilled holes.
As magicmike indicates, this is not a true leverage for most people because everyone's PAP is not the same.
Since my PAP is (or was) a very neat 5" over with no up or down, if I have a ball with a pin-CG distance of 2-3" AND I place them under the ring finger, which for me, places the pin approximately 4" from my PAP, then, when I place the pin AND the CG both 4" from my PAP, they appear to be stacked.
A nice picture for me, of a strong-ish drilling, a 4"x4" drilling.
If, however, I stack them, BUT place the pin above the ring finger and the CG below the rf, then that drilling will be closer to a 4.75" x 4" drilling, hardly leverage.
The problem is so many people WRONGLY, as magicmike states, use the thumb and finger holes as the reference points to describe the drilling, when they should be using the PAP, the VAL and/or the midline. It's a laziness that makes true information, about the ball's drilling, not available.
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"None are so blind as those who will not see."
Edited on 1/25/2009 6:31 PM