Jack (at least in his prime) was a snap loader - right?
Yup, that's why he stressed the shaft so hard.
Which is also, by the way, another MAJOR FACTOR IN FITTING! Which is often overlooked by many so called "professional fitters."
They may not know what snap, sweep, or random loading is but they can watch the swing and know how the shaft is reacting from the swing and fit accordingly.
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I'm not a TGM or PGA certified Pro, but I did stay at a Holiday Inn Express last night
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