Replying to Hellbent opinion... +k

Hey guys evo has some hell bents on sale for pretty cheap and its been one of those skis Ive always wanted but never got a chance to buy. The problem Im having is that they only have 169's. Im 5'10"ish and 140 pounds. My daily driver are 185 armada jjs and im woried about the hellbents being too short. This obiously wont be my charging ski, i just want a soft ski to play around on in the deep days. Idealy I would get 179s but will 10cm be a big difference? Or sould I just go for the deal?