Actually, the highback on the cartels stiffened considerably in 2012. From 2011 and back for 5 or 6 years (i forget exactly) it was the same stiffness.
In 2013 the highback is essentially the same but has 3% more torsional flex than 2012.
and dude, how on earth can a binding be good for jumping and carving but not good for boxes and rails??? What exactly happens on a box? You ollie on and flex a press and ollie off. What's with the prophecy's that is deficient for this???