I went to do a gapping session today (from a fitting studio like TXG) and to get the lie and lofts checked on my Mizuno JPX 921 tours SEL. I had been having some mixed results on the course and was starting to doubt my original fitting from the fitting day by somewhere else. The reason for this was I am typically a 1 degree upright player and I was fit to 1.5 flat. So my concern was my original fitting spec was off the mark. First things first the lie and lofts of my irons were all over the shop and I was shocked at the variance between irons. I was fitted to KBS $ taper taper shafts 120 in stiff flex. The fitter did advise that I was on the line between x flex and the s flex and decided to go the s flex, as well you know we are not getting any younger and I could not imagine my swing speed getting faster. I ended up getting my lies and loft sorted and did a gapping session. The fitter/pro/tech (not sure what the correct term for them is) did suggest i try a x flex and see how it would match up. So he grabbed his fitting 921 tour iron popped in a shaft and bent it to one flat like my irons and i hit a few. I have attached a screen shot of my first swing with the x flex shaft. I would be interest to see whether these numbers are where I should be or am I missing out so to speak. Are these numbers about what I should be getting? Enough spin/launch/descent angle? The reason I ask this is that I do not want to go to the cost of making the change if the results/numbers are not optimal. Before you comment yes the swing patch and face angle is not a misread I just put a really good swing on it and the fitter said he only see's that like once every 6 months or so. I had to get a picture of it not just for the zero zero but it was the first shot with the x flex shaft he gave me and would be a good indicator of performance it was providing. Please have a look and advise if you think the numbers are good enough to warrant a change and if the spin/launch etc is where it should be.