Yeah, I think he's back. You can write off Pitt as a weak team, but you can't say the same about St. Louis. Beyond that, his stuff has been much better across the board: faster fastball, slider that slides more, and much better control. Last night, he was nearly incapable of throwing a ball (and I think some of his pitches that were called balls were strikes) and that doesn't depend on who's at the plate.
He's also more fired-up out there. The Randy Scowl is back, he's cursing under his breath at balls, and he's generally just much more intense than he has been. THAT'S the real RJ, for better or worse.
Amazingly enough, I think still he has some room to improve. His slider is biting more consistently, but it still has a tendency to be a bit flat. With a little more bite, he'll be unhittable.
I am the Master. Don't question the Master. Just do what he says and be proud.