I dunno. Maybe the best way to put it is they tend to pull the ball when they hit it well? Being a near Toronto resident, I've seen and heard about Bautista quite a bit. His "late blooming" success came from him changing his swing, in that he starts it a bit earlier, which results in the bat being further through the swing when contact is made, thereby pulling the ball. For whatever reason, this tweak turned him into a beast, so he stuck with it.