Same, I thought the shaft optimizer data was spot on for me. I also have a quick transition plus I need to do everything I can to keep ball flight down, which is why X100s have always worked well for me. It was also cool to compare my data to some Mizuno staff players and I have very similar numbers to Ben Griffin. That gave me a boost of confidence because I would get frustrated that I don't hit down enough on the ball and take some pretty shallow (if any) divots, then chase some swing change that was totally unnecessary. Now I don't worry about it and have been playing some of my best golf in years.
Really looking forward to what the 243 update looks like. I'm kind of in between what I should be playing with the S3s and JPX Forged.