I think he was reacting to my post.
And sure, the trailers might not be the most accurate source but what I was considering is that the colours in the trailer are almost the same as the GOUT although being from a different transfer done at a different time, while the 2004 colours are totally different, so it's more likely that the 2004 colours were screwed up, than that all the previous transfers were.
edit: and the 70mm frames are mostly quite faded - blue or pink shifted, so that's hardly an accurate source either:
EDIT of EDIT: Although, in the light of the most recent findings, it seems that the 70mm scans of SW and ESB might actually have quite accurate colours.