Three comments:
I've tested some Terras, and so far on my night-time optics chart the glass has always rated exactly the same as on the several Conquests tested.
The only significant difference I've found between the Terras and Conquests is the eye relief on the Terras varies more at different magnifications. The Terra adjustments have been just as good, and they've held up equally well on hard-kicking rifles.
I am always a little puzzled by criticism of fuzzy edges in the view of scopes, since in my experience the aiming point is never at the edge of the field of view.
