the ar6 is basiclly the ar5 but its now wider under the foot and im not sure if it has a diff flex pattern or not but i believe it is a tiny bit stiffer. its closer to an all mtn than the ar6 but is supposed to shred in the park to, 115 pounds is light tho so if you are looking for something to butter on etc. or something that isnt too stiff, you probably wana look into some other skis, maybe the silencer because the stiffness is supposed to be inbetween a pe and a fuja which could be good for you and its also supposed to be an all mtn stick