i had the ar6's and personally i tihnk the heizenbergs a nicer ski but it kidna depends between whether you want something pretty noodly/flexy, or if u want something to hold up on big shit
both of them hold up on big features, ar6s turned into noodles after a while but ar7s are stiffer. I think the heizenbergs are a pipe ski so that would be pretty stiff.