Well, from what I rememeber mr. Scott saying somewhere, it is all the same transfer, only the digital colour correction was done separately for the FC.

Also, if I remember correctly, the DC was not shown theatrically (at least not widely) so actually the 1997 DVD (which is the same master as the original LD, which along with the VHS was the original presentation of the Director's Cut, which Ridley Scott had very little to do with) is a precise reference for this particular version of the film.

So broken down, each version had different colouring, so it couldn't be achived through seemless branching to have the right colours for every version. Can anyone here remember what Blade Runner looked like colour-wise on it's initial release and tell us which version is the closest? Because for all I know the 06 or 07 transfers may actually have colours closer to the original release of the film than the possibly crewed up LD DC transfer...