Yes, calibrating with Test Pattern Generator really works!!! I saw it with my own eyes.
It really could help clear up thin haze and yield better color balance throughout the grayscale spectrum (10-100 IRE). In the end, only slight adjustment on contrast and brightness is needed to fine tune the picture.
However, for non-Lumagen users, it means we can only calibrate projector and dvd player, i'm not sure how much improvement it can give. K.Jit and K.Ae have to help explain this.
In short, yesterday 2 hours with K.Jit and test pattern generator was an eye-opening experience for me!!!