Alright, so I just got a pair of Look TT09 race bindings. Yes they kick ass yes they were cheap. And yes they are indeed bright yellow and orange. But thats besides the point. I was wondering what the AST switch thing is on the left side of the Toe pieces. What is the reason for it? Does it do anything special. It can be moved forward and back. Someone with knowledge of Look bindings fill me in please.