Highest vs. Lowest IFFB%

For background on the markings please see my first blog-Alien Crop Circles and the Baseball Swing

Players with high IFFB% (infield fly ball %) tend to be more level through the zone, while players with low career IFFB% tend to take a path that gets them working "on top of the ball". These curves are evident in these examples and so far seem to be consistent with other players.

Wells and Votto

Also worth noting is the higher IFFB% players are typically pull hitters, which gets them working the bat head around the ball more. This requires a more level bat through the zone and a greater dependency on perfect timing as the bats surface does not stay in the zone long enough. So if a pull hitter is late their barrel is not commited to contact as well as a player who gets the barrel into the zone earlier.