I was fitted for my first real set about 5 years ago. Went to a Scheels by my house and got fitted for Titleist 718 AP1 iron set. They had me fitted for +1" shafts. I am just under 6'3" in height. I have always struggled with my longer irons, but have always been good with the shorter irons (8 and below).
Recently, I went to get refitted for a new iron set and was interested in Callaway irons since I love the Jaws wedges. Got fitted for Callaway Apex 21 irons in the standard shaft, felt amazing. When I asked why they didn't consider shaft length in the fitting, the fitter just said to go with my last iron shaft length (which is +1"). My worry was that I got fitted in standard length, and was hitting them really well, getting great numbers on the trackman...
I also asked the PGA professional about this, and he told me it's a combo of many different things, but going with what's most comfortable in the end. My assumption was shaft length was correlated with player height.
What is everyones thoughts on this? My gut was to go with the middleman and play with +1/2" shafts.