I got out too late to see the sunrise on Clavius -- 10pm -- and at first I had to wait for the sucker holes in passing clouds. But the seeing -- THE SEEING! -- had moments of amazing crystal clarity in between swamps, when 432x in my 8" Cave provided razor sharp images.
The clouds completely passed by 10:30pm. I cruised up and down the terminator, enjoying all sorts of detailed views. But the objects that caught my eye, and that I spent the most time on, were Clavius, Timocharis, Stadius, Rima Hyginus and Rimae Triesnecker.
My two favorites from last night were Stadius and Rimae Triesnecker. The numerous tiny, bright craterlets in and around Stadius would occasionally pop into clarity, their bright white edges looking almost like salt sprinkled on the lunar landscape.
I had not observed Rimae Triesnecker before. I was looking at Rima Hyginus when I noticed this delicate, barely perceptible line to the south of it. I retrained my attention there. At first, I only saw two rilles, the ones that meet at the v-shaped junction between Triesnecker and 'F' on Rukl 33. After a few moments, and when some steady air came around, the main n-s rille became visible, and then more detail at the souther end, where another rille criss-crosses the two longer ones. The more I watched, the more I saw! It was spectacular.