I'm not sure why people keep saying PCA is "ice cold" right now. Yes he had a bad weekend and is 0 for his last 10 with 8 strikeouts, no doubt terrible. But his 6 games prior to the last 3 he had a 1.036 OPS.
I think with PCA there are just certain pitchers that he doesn't hit well against, but outside of the first 2 weeks of the season he's largely avoided lengthy slumps. His season OPS has hovered between .840 and .870 pretty much the entire year.