Not only locations but particular pitches. On a given day an ump may be more give of the outside on a slider than a fastball or tend to be fooled by backup movement on the change etc - so there is a lot for the teams to slice and dice in terms of umpire tendencies. OTOH I think the probability is that umpire tendencies are often quite transient as opposed to reproducible from game to game, and the most successful catchers and pitchers are 'reading' and adjusting on the fly. That's might be the piece that ABS impacts the most, because this year you might deliberately target just off the plate because the ump is giving you the call, but when you know the batter can challenge, how much is it worth the risk of it ending up a wasted pitch (i.e. challenged into a ball)? Has to change the thought process at least at the margins.