most likely will depending on how you feel about "results"
if the PXG shaft launches at 18 degrees with 2200 spin and the other shaft launches at 17 degrees with 2000 spin and you feel that makes a difference, then I guess its "legit"
if both shafts lead to a 260 yard total drive and both are in the fairway, who cares about the fitting.......ive played many clubs over the years...different shafts, lie anfgles, lofts ect.....everything has produced the same scoring results....ive putt with a tree branch and a scotty cameron and two putted with both lol.
ive said it 1000x, "fitting" is so subjective and overblown for most amateurs. The tiny differences in launch, spin and flex for most amateurs are not worth the money spent on fitting.....PXG may be legit but what will that do for you on the course? how will you score better? NOBODY can correlate that on any level...... Titleist has some of the industry's best fitters and ive been fit 3x by them.....scores remain the same.......
to me, BALL FITTING has much more of an impact than club fitting. #unpopularopinion