they are definatly not heavy, just normal k2 weight, lighter than the publics and fujatives too. and they are stiffer than the fujatives, but quite a bit softer than the publics. i skiied them for like a week over the summer in whistler and its one of if not the best park ski ive ridden, ive skiied ar5's, stl's, fujatives, tm's, invaders, scratches, and it beats all of them for park, except mabye the stl's, its a tie between those two. they feel most like the ar5's with a different flex, its easier to butter them than ar5's but i cant tell if they are softer or not. the one place where they do really well is on jumps, on jumps these beat any other ski, the flex and weight and everything is perfect for it.
even chris turpin said its the best ski he has ever ridden, and he was dropped from k2 and he is on 4frnt now and he still said that.