Call me a dinosaurus now, but I am still an advocate of longer skies as far as devoting very most time to backcountry skiing. I am 5'9", 170 lb, a more aggro skier (no racer, though) and would not like a bc ski below 180 cm, rather towards 190 cm. That's the reason why I ditched the idea of going for the Metrons as I had shortly ago in favor of a fat with at least 90 mm underfoot in addition to my 1080s, I am still in the decision process though.
That said, for the rare groomer skiing I will either keep my old 187 X-Screams or go for s.th. separate, but then in between 170 - 180 cm.