It was discussed during the webcast of the last launch, they said to save fuel. Presumably there's a more technical discussion around it, but that seems to be t

It was discussed during the webcast of the last launch, they said to save fuel. Presumably there's a more technical discussion around it, but that seems to be the gist of it. http://www.youtube.com/watch?v=y_4-TOcVegM&feature=player_detailpage#t=506s http://www.youtube.com/watch?v=y_4-TOcVegM&feature=playe...