yes that would be pretty miserable. I've found that SE ridge to be pretty ugly in general as you weave up those gendarmes, deep drifts of snow on one side, ice, and at times, bare rock on the other. If I were to climb there again had the choice in the matter I'd just go up the Hayden G. even with the extra distance, etc. take the skis up the main south ridge to ski down at the traverse to the collier g, then head over to middle sister I guess. I've wondered if the west face left route on north is skiable. Nice trip guys!