I went to a Titleist golf fitting at Plaza Golf yesterday, and the Titleist representative Jack was very helpful.
He first asked me what golf ball I currently use (I play with a ProV1 mostly but use a ProV1X sometimes). He had me warmed up my swings and after a few shots, he analyzed my shots with 7 iron and driver between ProV1 and ProV1X using TRACKMAN.
Jack went through my good shots and list different categories to compare the 2 balls such as launch angle, spin rate, ball height, etc.
We determined that the ProV1X is a better ball for me as it delivers better spin that I like with my iron and chip shots.
It was a great experience :)
Thanks Jack.