I have had a run of decent seeing nights, where the temperature dropped to 75 deg F (24C) or so, by 10 PM, and just stayed there, as an overnight low.
Scope is a 6"
First, the non Cygnus ones:
On the evening of 18 Aug 2021:
STT 371 in Lyra, m 7.0, 7.6, sep 0.9", PA 151 deg. I got a "black line split" on this one using my WO UWAN 4mm eyepiece for about 304x.
STT 525 in Lyra, m 6.1, 9.1, sep 1.8" at PA 130. Note says not too difficult at 243x (5mm TV Delite) and 304x, almost steadily held.
On the evening of 24 Aug:
Ho 131 Delphini (SAO 106138) m 6.9, 10.6, sep 3.4" at PA 331 deg. This one proved most difficult to more than fleetingly glimpse at 243x, but I was able to see it well enough to confirm the PA. I have seen it well, in the past, in a 15" reflector.
Cygnus doubles:
STT 376 Cygni, m 7.5, 10.4, sep 3.0" at PA 233. The secondary was well seen at 243x, then confirmed at 173x, using my 7mm Delite eyepiece.
STT 377 Cyg, m 9.4, 9.4, sep 0.9" at PA 34 deg. Seen as a well defined "peanut shape at 243x. I suspect I could have achieved a "black line split", had I gone a bit higher in magnification.
STT 385 Cyg, m 7.8, 9.6, sep 1.2" at PA 51. Split at 243x.
STT 386 Cyg, m 8.5, 8.6, sep 0.9" at PA 70. Saw at 243x, black line split confirmed at 304x.
Evening of 25 Aug 2021:
STT 403 Cyg, m 7.3, 7.6, sep 1.0" at PA 171 deg. Complete split barely achieved at 203x, with TV Radian 6mm
STT 408 Cyg, m 6.7, 9.4, sep 1.6" at PA 193 deg. The secondary was difficult, but definitely seen at 304x.
STT 410 Cyg, m 6.7, 6.8, sep 0.9" at PA 3 deg. Complete split seen at 304x.
From the vening of 26 Aug 2021:
STT 418 Cyg, m 8.2, 8.3, sep 1.0" at PA 283. Clean split at 304x.
STT 419 Cyg, m 7.2, 10.0, sep 1.6" at PA 23. Seen with difficulty at 304x, but correct PA confirmed.
STT 420 Cyg, m 6.7, 10.5, sep 5.5" at PA 2 degrees. Best seen at 173x.
STT 432 Cyg, m 7.8, 8.1, sep 1.4" at PA 115. Complete split seen at 203x.
STT 438 Cyg, m 8.3, 10.3, sep 2.3" at PA 0 (north). Cleanly split at 203x.
That's all for now. Thanks for reading this rather long summary.