ETCP 25 @ 60cm deep, sudden collapse, 4300', W aspect, BTL.
Slight density gradient at the 60 cm deep interface. No magnifying loop was used, but crystals at this thin interface appeared slightly faceted.
80 cm on top of the polycrystal (1F and 10 cm thick) raincrust.
Kick turns consistently produced 1-2m shooting cracks and down to the 60cm layer with greater frequency on micro terrain above 35 degrees that was slightly wind affected.
Travel was limited to treed slopes below 35 degrees.
Slight suncrust developed on the lake which received sun until cloud cover increased in the early afternoon.