[Kurn, son of Mogh]

Three things about stud.

1) 3rd street play is far more complex than HE preflop play.
2) Your biggest decision after that is 5th street, since if you call on 5th it's wrong to fold on 6th almost 100% of the time.
3) You get outdrawn more often in Stud than in HE.

I personally prefer Stud/8 to Stud hi, especially for MTTs.