I had a ’15 T129 SCR Works and loved it. It was my first 29er FS and it fitted like a glove. It just felt right. I covered most disciplines on the bike; marathons, XC races, Uplift days, trail centers and more. Never had an issue with it.
I decided to swap to the T130 RS for a change. Whilst the T129 is marvelous, it can also be a bit cumbersome with the bigger wheels in tight switchbacks. It also monstered down descents and wasn’t that nimble. I just felt that the 650b might make it more playful and fun.
I’m not disappointed at at all, the t130 does everything the T129 does, but with more bias towards descending and playing. I upped the travel to 140mm and am perfectly happy with that.
I’d say T129 for a more XC biased bike, and T130 for more aggressive riding. That said, both are cracking bikes!