They got this new system in them called, a leaf spring which is located pretty much in between the bindings under the boot. It gives you 3-4 more feet of pop out of the pipe and off kickers. I work at a shop and have tested them out, the fucking rule, also we are gona have them for demo pretty soon, at Seattle Ski, they only come in two sizes though 165cm and 175cm, but they are thinking about making in in 185cm too, yeah they are supposed to be pretty cheap. I dont know reatil on them but pro form is way cheap.