Yeah, Diaz and Fitch are my two favorite UFC fighters at the moment and Penn made both of them look silly for a brief moment at the beginning of both of those fights.
The problem for Penn is when the other guy gets out of the position he picks up his ball and goes home.
The only time I've ever seen Rory in a bad position, he caved and got TKO'd so I think that's a good sign for Penn in this fight.
But the second that bell rings at the end of the first round, Rory wins. Penn has to stop him in the first.