It discusses the changes to Bobrovsky's game, particularly in his buterfly and the improved results.
http://www.nhl.com/ice/news.htm?id=662215
With his chest more upright, Bobrovsky now is able to get a better seal between his arms and body, reducing the number of pucks that used to go through him. And because his hands now are more out in front of him rather than pulled back in relation to a forward-pitched torso, he is making cleaner glove saves and steering pucks better with his blocker.