Another great report Doug - lots of variety in your viewing!
Must have a look at some of these doubles & interesting stars too - it's so easy to get sidetracked on DSOs, like nothing else matters!
M15 does appear slightly off-circular to me too - it's one of the densest Milky Way globulars as well, having suffered "core collapse". It may even have a black hole at its centre.
I went outside very late last night, and the stars were magnificent with Orion climbing up in a jet black sky. Was just transfixed and stood staring for 10-15 minutes (or more?) - didn't even grab my scope
. Saw a few Orionid meteors too, but nothing spectacular......
Cheers -