Do you think Cotto will turn southpaw?

It's something he's tended to do here and there, I remember he did it briefly against Judah and it had a good effect. If he wanted to mess with Pac's head and gameplan it might be a neat thing to try for half a round or something. He seems pretty comfortable fighting as a lefty when he does do that. What do you think? And if he does try it, do you think it'll be effective? Looking for real opinions here.