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Just adding a comment on the very minor CA with these scopes and more generally with any achromat or fast ED refractor:
if a particular objective design is not capable of bring all desired wavelengths to the same focus the designer can choose to let the blue end of the spectrum go out of focus or the red end go out of focus. While red wavelengths are more important for planetary viewing the eye is more sensitive to blue so observers are more likely to complain about blue chromatic aberration. Designers can choose to bias correction towards the blue end to keep customers happy, but those same customers are unaware that they are losing out on planetary detail.
So in less than perfect apochromats visual observers benefit from best correction at the red end of the spectrum.
I'd read about this from respectable sources many years ago, then there wasn't much about it on the forums for a long time, but recent threads on cloudy nights have reiterated the point.
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