Ymir Peak backside

Trying to get to start of actual ski run, by going around back of Ymir Peak at the highest part of Kutetl basin ("Peak to the bench"). Commitment level fairly high due to steep, icy slopes that we navigated at start of this section, but the main problem became blown-in storm snow that eventually became deep enough at the critical final section trying to attain ridgeline feature that is the start of the run (about 35m of open slope). Trying to gingerly move along and kick something off while maintaining contact with crust, eventually this released. Skier moved about 0.5m down slope onto bed surface. Some hangfire was still in place which made it tenuous to gain the ridge, which was eventually done by skiing the bed surface across, then boot-packing through more supported slab into crust for about 10 metres. Not ideal. Very hard crust on bed surface and higher on slope. No other instabilities noted on actual run (NE aspect) although we took it quite easy.