Originally Posted by Rated
Yeah, the Superman punch seems to be easily telegraphed and you are opened for a counter if you miss.
It is a good technique to have in your arsenal in situations where you can capitalize on its power, but I personally don't think it is a great move (it is flashy though).
St. Pierre actually knocks down Hughes with a left hook, but the Superman punch is what started the barrage of punches leading to the knock down.
We used in full contact tournaments and it all basically comes down to timing:
1) You need to know when to throw it
2) Set it up first with other combos, so you don't telegraph
3) Throw it with alot of speed
4) Follow thru and get the hands up for a counter