Barry,
Be very cautious about some professionals estimates. Mo himself measured my PAP as 2 3/4" over. That screwed up the drilling on a brand new ball, an expensive MoRich ball, too. He was so far off, it was pathetic. I guess he wasn't "up to snuff" that morning. My average PAP is in the 5" range as measured by myself and several other pros several times and confirmed by ball reaction MANy, many times.
Turned out he was much more interested in his phone calls to his distributor about how the sales of his balls were going than in the coaching he was supposed to be doing in seminars that day at the local center. That must have been such a drag for a person as important as he is ... err, was.
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"None are so blind as those who will not see."