Toured outside of the ski resort boundary near Minaret Vista to look for more evidence of the persistent weak layer in the last place I saw it active on the 15th. Dug a profile on a N aspect at 9075' (see attached). Test results were much less conclusive here today in the deeper facet layers, but the shallower facet layer that was covered by the most recent melt-freeze crust showed a little more potential for fracture initiation (probably related to how large the temperature gradient is in that portion of the snowpack) but no layer showed propensity for propagation today.
No other signs of instability noted in the few hours I was out. I would say that our persistent weak layer is still pretty hit and miss right now.