Geo! Lighter streaks in the NPR? I get them, too, but previously wrote them off as contrast between two slightly darker belts in the NNTB. I planned to sketch them this time (from last night's observation) despite it all. See it, report it, then explain it.
Yes, during very steady moments, those NTB "little crenelations" poke up like Alfalfa's hair-do. To me, those darker regions on the southern NEB edge have lost much of their prominent blue color. Some can still be seen, but they seem darker than a month ago.
There are some very faint going-ons in the SPR, an interplay of difficult and indistinct light and darker contrast.
Great report in so few words.