In reply to facet:
hey buddy, I'm also 178cms and would not ski a length less than my height.
Currently on Line Sick Day, 98 under foot for multi-day tours..
These are slightly rockered, and are playful, stable, and floaty.
They are however 7 years old, some I'm also looking at a new ski in the sales, and given the further improvements in materials and design, I'll defo be going fatter, maybe Blizzard Zero G 105s... for more stability, more playfulness, and more float...
https://www.switchbacktravel.com/best-backcountry-skis
I really don't know how you cope with a short ski in deep pow, crud, and at speed..
JC