Is JT going to be rusty fighting an orthodox fighter?

As we all know, Jermain's last 3 fights have been against southpaws. In fact, the last time he fought an orthodox fighter was over a year and a half ago when he fought Bernard.
Now, boxers don't train like they use to...instead of being in a gym year round, most champions just train during training camp for a scheduled fight. Since his last 3 opponents have been southpaws, his sparring partners for the his last 3 fights have more than likely been southpaws. Also, most of these sparring partners have prolly been sub-6'0" (Winky, Kassim, and Cory aren't that tall for middleweights)since trainers tend to hire sparring partners that are around the same size as the opposing fighters.

I dont think this will have a huge impact on the fight, but i do think Jermain will have a harder time dealing with Pavlik.
What do you all think?