I don't think he's tipping his pitches. I he's just been scouted well and guys are waiting on certain pitches. then they are driving them. There was a comment earlier about most mistakes not being hit and ZG was just unfortunte in that regard. While the first part true, if you're looking for a pitch that is a mistake, as opposed to seeing a mistake and then trying to hit it as you realize it, I think you have a much better chance of driving the ball. If anything, Greinke is just not "effectively wild" enough with his mistakes. I don't think he's surprising anyone, so when he misses he misses in a pretty defined zone in which hitters can feast. I don't beleive it just bad luck repeating in the Chicago, New York and Minny starts, at least to the extent that we can significantly attribute his results to the "luck" component of the equation. What happened in each of those games was very similar to what happened in the others. Guys with talent get the benefit of the doubt, but he's just very hittable right now.