I think that they did.
They Cotto looked impressive when he turned it on.
Pavlik looked fine and back to the pre Hopkins Pavlik. I think it was just a blip. He was injured and and has weight issues. I said moving up was a bad idea for him. He had a more difficult fight when he moved to for Taylor 2.
There is a shadow over the Cotto Margarito fight, the doubts that cotto had about himself may have been eased by this.

They weren't tested fully I would like to see;
Cotto Vs Mosely
Pavlik Vs Abraham

I would be fully convinced then.