probed 60cms BTL on the approach and then lots of variation at TL and above. both crusts evident up to approx 2350m (the highpoint for our obs). small test pit at approx 2350m E-NE aspect produced hard results down 60 at a facet interface between old slabs of varying resistance. no results on crusts. dropped a large piece of mature cornice onto steep NE facing slope and the top of parkers with no results.