This is the most time I've spent on any one object. This was a total of nine hours - three hours (36 x 5 minute subs) each for Ha, OIII and SII. I'm happy with the data but not so happy with the processing, especially the full field. Although the field of view is wide with the Esprit100 I did a drizzle integration so the cropped version of the core would look better (higher resolution at
https://www.astrobin.com/full/352725/B/?nc=user).
Any constructive criticism welcome - especially from any PixInsight gurus.
Kevin