I've seen him pitch a few games recently, and his stuff looks downright nasty. The ball seems to cross the plate from so many funky angles when he is on he looks almost unhittable.
When he isn't on, it gets pretty messy. I would definitely give him a shot if you are looking for SP. I don't have much room on my staff other wise he would have stayed. I got a few good games out of him though.
Sox are rolling to boot, so he could get some W's even when he isn't overpowering. That's a nice situation to be in.
* Steroid induced record