Thank you again for everyone who commented on my driving distance post.
I posted in the Golf Tips forum about my driving distance. I was getting average 256 carry and 278 carry and roll with my 917D2. When I switched to the TSi2, now I'm getting 278 carry and 292 carry and roll. It was substantial. I do wonder if my swing did change and the new shaft I got works better with my game too. I can't complain about anything with my TSi2.
It feels so butter hitting in the middle of the face with the TSi2.