Do not get griffon, I have heard good things about px12's. Also consider Salomon STH 12 Driver, STH 14 Driver, Rossignol FKS 140, FKS155, Look Pivot 14. All great bindings
PX jibs are just heavy. I really liked them though, solid binding. Much bigger fan of FKS/pivots thought. I have a pair of griffons but i haven't mounted them to anything yet so i can't speak for them minus that most marker bindings are notorious for brake problems