Love this thread. Last year was the best golf season of my life. Got my handicap down to a 3. Shot even par for the first (i make a lot of pars, not enough birdies).
Golf shop near me just put in two of those trackman machines. I was over there the other day, thinking about tinkering with the length of a few of my clubs, and the guy put me in the trackman bay. My 7 iron ball speed averaged 127.8 mph. Apparently that's quite a bit faster than the average tour pro: https://blog.trackmangolf.com/trackman-average-tour-stats/
Only problem is my that my spin rate was like 1500 rpms higher. So definitely need to find a lower spinning ball.