I was chatting about some SSF2T trickery with the nice folks at sobat carnival and they put this video together.
The Auto Mix-up (7MB divx)
This trick is possible with almost any character. For example, with Boxer:
↙ hold, ← + strong, ↖ + jab
Take a look at this old match and you can see Daigo mess up the auto mix-up in the beginning of the third round.
H/T: ABC, monmon