hmm thanks for your thoughts frank678. The saturation is actually exactly the same between the screencaps in post 8 and these latest screencaps, the only difference is that the screencaps in post 8 have more green overall which make them appear more muted in colour compared to these screencaps.
What i'm finding is that those preview shots are pretty misleading because i've just discovered that they are slightly different to what I actually see when I export the frame and the encode itself, the whites, especially of light sources, seem more yellow. From now on i'm going to post clip comparisons that actually reflect what the encode looks like.
The real question is how much green to go with, choices, choices... I'll put some comparison clips up later on so you guys can help me get out of this labyrinth that is regrading Star Wars...