Pros and cons
Pros...Easy quick ratchet bindings, can be fastened with gloves/mittens.
Pivoting binding makes traveling in deep powder easy, and better crampon grip.
Cons...Opening in toe area is a little large, however I have a small foot(size 8)
My 9x30's weigh 4.4 lbs. which are rather heavy
Quick ratchet bindings, can be buckled/ unbuckled with large gloves or mittens easily. pivoting bindings allow tail of frame to drop, making travel easy in deep powder, also allows great traction for crampon.