He asked to start a day game after a night game, and again has a great CS%, and we know he doesn't call too many fastballs
Well it's great we judge a catcher's merit upon his CS.
It's not just calling fastballs too often, it's relying on them too often. And whoop-dee-doo he volunteered to catch a day game after a night game - they're going home and have a day off tomorrow.
It's been said that he's not that great a catcher to throw to for sinkerballers and the like because he doesn't block balls in the dirt worth a damn.
But don't worry, he's got a great CS and doesn't call too many fastballs.