StarThoughts said:

I think that it's undeniable that different lighting situation will give different values to each of the colors in the shot. If you keep giving us more shots, I think the same thing will happen; there will be some cases where setting A just happens to look better, whilst in others setting B does. Unless you're going to regrade the film on a shot-by-shot basis, you're going to get some variation in responses.

Yeah indeed and this is doubly true for star wars because it is a particularly inconsistent film when it comes to colour grading, certainly by far the most inconsistent film i've ever graded. Getting the colour grading 100% consistent would require a very slow and thorough shot by shot regrading of the film, knowing what the lighting conditions were for each scene and what intentions GL and co had in terms of colour grading each scene. Only the original cinematographer most likely would have the knowledge and skill to be able to achieve such a feat accurately.

As things stand, we have to make do doing the best we can with what we've got. My main priority is that its appealing to watch rather than it being 100% 'accurate' colorwise.