The new hellbent is stupid. Way to big of a ski, they increased the dimensions by 10mm everywhere, stupid imo. I would get the 179's they ski short, like REALLY short. If you're dead set on getting the new model remember that as of this year k2 finally measures their skis correctly, aka 4cm shorter than previous years meaning my 189 bents are actually 194's but this years 189 bents are more like 189.
They are soft, too soft imo. Why are you so dead set on the hellbent?