I've owned 3 different T2's and loved all configurations. I especially liked how the thin framed 45 felt with the T-handle on the T2. I recently ordered a S6.5 with EZ grip and 86 frame. I am not sure how well I'll like the S6.5's feel but I love the way it looks. To me, the biggest difference is a single pump rod versus two. They both should perform similar, and I guess it's all about which style you like best. Some people say that the S6.5 feels better but it's all opinions. You can't go wrong with either one. I just wanted to try something different. I looked through many pictures to help my decision. Good luck, it won't be an easy choice.