Dammit I need to get the pictures of my buddy pressing the new evo 155 at A basin, then you can tell me if it looks too stiff. Basically that board is pretty jibby not a straight up jib stick like say an artifact. But with the new rocker you can get press crazy with it.
Ok so basically if you lay the board flat on the ground and the ground is level there is a V at the dead center of the board. At the end of the V is where your inserts for the binding is, after that there is a mini camber in the nose and tail (think regular snowboard camber here). Then the up turn in the nose and tail. Where as the Skate banana is a concave base like a skateboard with rocker then a flat nose and tail. K2 uses whats called a 3 stage rocker it basically looks like this \__/ where its flat between the feet and some of the inserts then lifts up at the nose and tail.