Hi AlexN,
I'm glad you posted your experience of using a high quality Mak for deep-sky. For quite a while I've been aiming to have a good crack at this myself, but I think you've saved me a lot of time and trouble.
As for mak-newts, I've been thinking of the Skywatcher MN190 but they are elusive. I got in touch with Andrews last June and they said stock would be available in Sept 2023, but I haven't followed up. It'd be good (but maybe expensive) if they were available again...
Stephen
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