Thanks everyone. I'm leaning towards the JPX 850s. As a frugal guy I also was thinking 850 because the 900 were coming out and I thought I might save with people trying to get rid of their stock of 850s.
As for getting fitted. I went to this fitter that sells mostly Wishon. He can sell the others, but sort of leads everyone towards Wishon. His conclusion with the irons was that I was pretty much standard length and loft. He recommended 95 grams if I was replacing the shaft on my old clubs to take the weight down. They're really a heavy clubhead. So 115 might work with the 850s.
Yes. Not only that but you had two near 62s in majors and two guys get to -20 in a major, something never done before. I think not only are the fields deeper, but technology is definitely leading to better scores, particularly with softer courses. Fast greens and windy conditions are still the kryptonite for keeping scores close to par, as seen at Augusta and Oakmont this year.