Well first of all, photochemical processes being what they are, it's pretty safe to say NOBODY knows what the colors truly, definitively are. Even if it was 1976 and you just took the negative out of the camera and developed it twice, both prints would vary slightly. So any argument about color has to be tempered with that fact. Secondly, all the IP/IN and print processes change the colors as well, as different stocks have different response curves as well. It's just not like today's digital world where we can track an absolute color from beginning to end, and even then that happens about 1% of the time. Chances are that in your arguments, you were probably right, most of the time, but again, it's kind of relative.
I am fairly confident that Legacy will ultimately be the most accurate representation we've seen, but remember this: you've done like 3 versions of Despecialized and Legacy only just finished its first pass. The reason it takes me so long is because I do so much checking against so many sources and references, etc. in addition to performing the work itself. I have pages and pages and pages of stuff just on the goddamn color of the Rebel Troopers' shirts. Ultimately, I put all of that stuff together and see what it points to in terms of color of the characters/costumes, sets, etc. It just takes forever.