Originally Posted by
SadieKate
It depends on conditions just like any other ski so I don't think anyone can answer not knowing what you're skiing in.
I have Karhu XCD GTs which can easily sink that much on fresh ungroomed powder, but they'll only submarine to a point and keep gliding. There is definitely more flotation than a classic ski meant for track and more sideways stability.
But there are some "ungroomed" trails that get so much traffic that you could skate on them.
It really depends on conditions.