There's SOMETHING about the way he throws his fastball that messes hitters up badly. It's not on them before they can react, but he led the NCAA in Ks his senior year, against composite bats that guys can choke up on with pepper swings. He led in Ks LOOKING, not just swinging. It looks odd coming out of his hand even though he has excellent strike zone capabilities and I haven't figured out why. He destroyed the minors the same way.
He reminds me of George Sherrill that way: It's not his stuff that messes people up, it's the little things. The way he holds the ball, the motion.
But because I can't put my finger on it yet, I'm just assuming he'll be an average pen lefty even though his minor league stats are killer. That dividing line when you don't have great pure stuff is hard to toe when you get to the majors. Breaking balls that used to get whiffs are now fouled off until a meatball shows up. But Sherrill did all right, and hopefully Curtis will too.
If it continues I don't have to understand it, just enjoy it.