It is not the number of balls called strikes that is important here. How quick the people here have forgotten Doumit and pinto behind the plate and having anything that was not a straight fastball down the middle be called a ball as often as a strike. If the pitcher thinks they have to pitch to a postage stamp sized strike zone, nothing good will happen. Suzuki was a little above average at just below 15 % Castro was among the best. If you look at the best pitch framers getting 8-10 % of the balls called strikes thinking that would be a good thing, consider this, if it expands the strike zone in the pitcher's mind they end up throwing more balls than strikes due to trying to get a strike. The analysis I can't seem to find is do pitchers end up throwing more balls where it is tougher for the hitter to hit hoping to get a strike call with a pitch framing catcher. Stealing pitch totals are nice, but does it have an effect on the pitcher? Quotes by a few pitchers on bad catchers leads me to think the strikes not being balls is very important to the pitcher. Can't find out if the other scenario holds or not. Jack would probably know, but since he has not been fired, probably can't say.