Yes and no. I get fitted etc…. I think the launch monitors and optimizing spin and launch has helped the pros a lot. And I remember the old days where guys would tweak their lifts and lies. I don’t think it matters as much for many players as they think. So yeah get fit…
Let me tell you a quick story...
I was fitted for a set of Mizuno Irons many years ago. At the time I was playing a Rifle steel shaft around 6.7 frequency. Specs were simple, standard lie & length, stated lofts, standard grip & the Rifle 6.7.
Clubs came in and I couldn't hit them for shit. Ball wouldn't get off the ground. I took them to my club builder for him to take a look. He told me to give them more time because they were new so on and so forth. I did not back down and left them with him for a diagnosis.
He gives me a call and says I found the problem - the shaft frequency is 8.0!! Now to put that in perspective my driver shaft at that time was a 7.7. So no wonder I couldn't hit the darn things!!
He rebuilt them for me, made sure the lofts were right & we went over the lie angles while test hitting shots. After that I was a happy camper.
So not only is it important to get fit, it is also very important to get what you ordered spec wise from that fitting.
It does matter - immensely.