Hi Rob
nice report! Wets my appetite, but most of the time I'm either too drunk, or too drunk to go out
I've observed NGC 1535 at 625x in a 10" reflector one very good night last year. It was greenish in colour, had a bright inner section with some filamentary structure surrounded by a faint outer halo. Central star was easy, also attempted another star in the halo but that alluded me. One of my fav PNs