There's quite a bit of difference in those heads which could be affecting your results. Try to find a Titleist Thursday near you so you can test several shafts in the TS2 head to see which one gives you the best results. They will have TrackMan data available to measure the differences along with what you will see on the range.

Good idea. I even tried the old shaft in the new TS2. Hopefully, I can get it worked out...even if I end up in a TS3.

Jim, I am literally in the same exact boat. I smash my 913D (blue shaft) and hit my TS2 good, but with a low hooking miss. I'll be interested to see if you find a solution.

I could have started this thread as I have been going through the exact same situation. I replaced my 913D/Blue 62 S with the TS2. It’s taken some work to get it dialed in, and I have had to change shafts three times. I’m now playing a S+ Plus LTD S, and that’s about as close as I have come to the playability I had with the 913. Overall that combo works great for me, and it’s about 15+ yards longer. As far as the low hooks, I experienced those as well. I will say the set up at address feels different and although the TS2 head is more forgiving than the 913, you’re not going to get what you want out of the club with a shakey swing. I really had to focus on mechanics and tighten things up. That being said, the TS2 is making a difference as I am at least a club shorter on second shots. Stick with it! As soon as you figure it out you’ll love it!