ZWO has got another version of the 1600MM in beta test with Jon Rista over on CN.
You can read about it here:
https://www.cloudynights.com/topic/5...pro-beta-test/
You will find a post by me over there, suffice to say i am not impressed, as they are solving a problem that no one actually has. Seems to me they are just matching QHY improvements to their versions. Eliminated Offset control. Stuck a DDR buffer on it, claim AMP Glow reduction (which calibrates out anyway).
Make up your own mind.