I think you hit the head, there's nothing special about his stuff, it's how he throws that's special. He struck out Swanson on a hanging slider, every Tucker at bat he hung something over the plate, there were several other meatballs to other hitters. Yet, they couldn't pick them up, last time out the Cubs were seeing the ball well out of his hand hence, them crushing the ball, this time they weren't seeing the ball well.