McGill shoulder Main avalanche path west aspect

CTE2(B) down 10cm & ECTNR x 2. Skiing was good but we could feel old hard surfaces under the recent storm snow. We noticed that the main path had sluffed down to the bottom of the track (1650m) size 1.5 with a dusting of new snow on top. RB6(WB) down 25cm (recent storm snow interface Jan.9th layer).