In reply to Tim Davies:
Right now, they will be fine, but the NE ridge in particular is a covered in scree. You don't need to go up either ridge through. Cross the river at the foot of Taillears, and head straight up the opposite stream line (which is a fantastic ski descent itself - better than Taillears in my opinion), and into the small east facing corrie (Coire an t-Sabhail). The slopes on the north side of the corrie are not that steep, so you can make your way up them to the summit ridge.
Post edited at 23:08