Don, that was very well done but you are also a Very experianced observer with ton of DS experiance.
I started 2015 from absolut zero as you know but I has work with some great guys but I has to learn more but now it was another guy with +40 years in the sleeve so LaPalma sky and 20” was not enough for this one. The German guy that rented the 25” had 20 years experiance and he said faint, very faint.
Darkness was decent or good ( could be darker ) but seeing was great, but transparency might was one issue.