Were you referring to the Sultan 94? If so, I definitely prefer the Sultan in bumps, and in rough crud. It has a smooth, damp, solid feel. The TST is more playful, and much quicker. I find that the Sultan, although a bit on the soft side for truly skiing fast (as is the TST in rough snow) , is exceptional in steep bumps. I probably executed the best bump runs I have ever skied this past spring on that ski, on Chute 75. I have never been capable of skiing a steep zipper-line as well as I did that day.
Other than that, they are probably pretty similar in terms of performance elsewhere on the hill, but the Sultan has quite a bit of metal, so expect really solid edge grip there.