Think about it. +/- .009". That means a total runout (TIR) of .018" Weight tolerance of +/_ 2 gr is quite acceptable. Spine deviation would be the important feature so far as I'm concerned. I see there is no spine deflection listed except that 45/90 weight range.
Not for me, but I'm sure somebody would find them useful. As with all carbon shafts, cutting from both ends would most likely make for a straighter finished shaft.
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