Ric do you agree that if you cut a Mammoth in half, pin at the top, the cross section is always symmetrical, but not the same cross section as if you rotated that ball 45 degrees? If you cut it down through the fin on one and split it halfway between the fins on the other you will get a different cross section, right? Do you follow me so far? If you have different widths of the core, different distances from core to cover, you have different Rgs. Are they as different as any asymmetrical ball? No. Are they going the affect ball motion? Very little. But the difference is there.
Rg numbers are either maximums or averages, but they do very through different areas of the core. The physics is there, but the effect upon motion may not be quantifiable.
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