Hi Red Baron,
yes I've been through the thread but think I can see some light shining and a possible reconciliation between the StephenK position (essentially which I agree with) and the 'blue-white' argument. I've started writing a post but fear it might just be seen as another piece of 'egotistical rubbish' but really boils down to the facts that 'weiss' or white often meant only that the aircraft was largely unpainted - dominated by CDL, that people's perception of what CDL looked like is influenced by translucent flying surfaces - not opaque linen-covered wood, and that pale blue was barely distinguishable from CDL in b/w photos (but paler) - as seen on the two-toned CIIa fuselages in photo 76 on Datafile 49 page 26 awaiting wing attachment and their upper-surface camouflage.
I'll leave it there.
Cheers,
GrahamB