Here's a question for you guys: who invented butterfly style goaltending, and who contributed most to it in your opinion? It seems like Glenn Hall is firmly the one to have invented it, or at least started putting the idea in peoples heads that goal could be played that way, even if the league was still dominated by standup players. Vladislav Tretiak is another one, and his style was interesting because it combined elements of standup with butterfly as we know it today: a lot of people have said he resembles a modern butterfly goaltender even in his old 70's footage. His emphasis on placement and conservation of movement almost reminds me of Antti Niemi at his best, made all the more interesting given that Tretiak was only 6'1, so not robust by modern butterfly standards. Even still, it seems like Patrick Roy gets the most credit, probably because of the sheer amount of success he had, his consistency, and the fact that he really cemented the trend and had others start replicating it. Forgive the weird format, but I'm curious what other names are out there and what people think.