Mike, regarding the red in the swirl, my FSQ-85 compile (8hrs) shows it (after careful handling in PixInsight) and the tiny ball of H-a below it, as does Rolf Olsen's EXCEPTIONAL image of it. I am sure it's just a processing nuance, but I am definitely going to try CorA again when all the snow and cotton balls naff off!
Here's the link to my shot (first person this season
)
https://www.astrobin.com/full/343506/G/