Speaking as a PNW skier, when we get deep snow it’s usually the Cascade Concrete variety. This week is a bit different as it is colder than typical, and the snow that has fallen in the past 24-48 hours is not “setting up” late in the day (where it gets firm and consolidated without even being skied out too much). Yesterday (Saturday) started out dust-on-crust and as more snow accumulated was getting pretty good by the time I left.
But I digress.....the heavy, dense Cascade Concrete can be challenging with 6” or more of snow. I find that I usually need to keep my feet a little closer together, and more evenly weighted. Basic parallel with some skidding/drifting, rather than carved turns. Just as importantly is to turn gradually, slowly, and be more patient. As Josh mentioned, hooky skis are not your friend, so it requires even more patience, whereas as a ski with more tip and tail taper and a larger radius sidecut will allow that easing in and out of the turns.
I think one also has to have a feel for the snow, that is, a sense of weighting/unweighting or pressure management. For me this is the most critical element. I can’t ski these conditions as if it were a groomer, rather I need to feel for when I can float and when I need to settle into the arc of the turn, when to ease up and when to let them run.
Kind of like the skills needed for skiing crud, only it hasn’t become cut up crud yet.