Since that time, he's given up one earned run in 22 appearances.
His WHIP isn't impressive at all at 1.37, and his strikeout rate is down. He's given up quite a few walks, too, which adds up to him having a k/bb ratio of 1.94, which again, isn't impressive.
So how is he doing it to this point? Well, the Beard might walk you, and you might even get a hit off of him. But you know what you're not doing? Getting an extra-base hit. Of the 127 plate apperances against Wilson, hitters have went 25-for-111 with...
Two doubles, zero triples, and zero home runs. Two doubles. I mean, heck, Jonathan Sanchez has four doubles this year by himself in 27 plate appearances.
He's not having as dominant a season as 2010, but he's still finding a way to get it done. This particular way won't last -- bad luck and law of averages will see to it somebody eventually touches him up for a few more doubles and a couple of home runs -- but B-Dub is still shutting them down.