Colabello had the highest BABIP over the course of a single season (min. 350 PAs) in the past 50 years, but not surprisingly, Gruber is all in!
http://www.fangraphs.com/leaders.aspx?pos=all&stats=bat&lg=all&qual=350&type=8&season=2015&month=0&season1=1955&ind=1&team=0&rost=0&age=0&filter=&players=0&sort=13,d
http://i.imgur.com/QywfXdb.png