flapping
Delta3,
Nice graphs. Especially the delta3 graphs which show that Robinson had good reason to build in the delta3 angle.
I am not sure from reading your posts if you included the effects of flapping in your modelling of lift distrubution.
It seems to me that the disymmetry of lift shown in the graphs is exactly what flapping is supposed to take care of. Flapping will create a cyclical change in angle of attack that should balance the lift across the disc. The graphs don't seem to reflect this.
The massive imbalance shown in the graphs cannot be explained by invoking twist, I don't think. There are numerous helicopters and gyros with untwisted blades that achieve perfect symmetry of lift through teetering rotors.