from what i know from what people say, and from clutch pictures, champagne is an incredibly diverse morph.
ive seen clutch pictures where you had 3 single-gene champagnes and all look different. differences within the same clutch can be dramatic.
i am not sure about this, but maybe the optics of a single-gene champ dont tell you much about the quality of the offspring. maybe its like high white and mid white and low white piebalds, just random and all over the place.
one thing i do know: enchi brings back the pattern. champagne has a reputation of obliterating the pattern of anything you throw at it, not so with enchi.