Snaps above are updated. After a visit to the X0 site and a bit of brightness comparison I tapped a tiny tiny bit more brightness into my filters (4%). It's just enough to keep there being any washing out of detail, but it whitens whites while you brush.
It also allowed me to tap the yellow/green correction up to 25% (from the previous 15%) with only slight clipping in 1 frame of film (a laser blast).
This brings '3PO up even better. I really should rename this project the Quest for the Golden Droid.

In case you're worried about the green increase, the only real greens in the movie are console displays on the Death Star and the readout at the bottom of Luke's binocular thingees.

Tried to adjust the hue, but where one shot needs it tipped one way, the next scene needs it somewhere else. So that is being left alone.

Any whoser, again, corrected pictures are above...

Still looking for a quick easy way through the chapter stops...