They are both great skis, not all that different. TST for me was slightly more playful, felt like a ski that lacked beef, was fun and really poppy in and out of the snow. Cochise was a little more steady in rough snow, still playful, skied slightly longer, although both felt short for the size listed, due to the construction. The TST I tested in a high 170's length and felt like I could have sized up, the Cochise was 185cm, I think and that felt just about perfect. I would probably prefer the Cochise for an all-around soft snow ski, as it seemed to handle the rough snow at speed just a bit better, but both were fun, assuming you are looking for a playful feeling ski, which both are.