There have been many reports that the new (12/13) Cartel highbacks feel softer than the previous generation (11/12). The new Missions inherited the old Cartel highbacks with the same baseplate. So aside from the obvious highback, the only other differences are the ankle strap (superstrap vs reactstrap), buckles and footbed (no autocant or b3). Testing by hand the Mission highback feels a lot stiffer than the Cartel. How is it that Burton rates the Missions softer?