Cyclical change of pitch gives the advancing blade a lower angle and less lift and the retreating blade a higher angle and thus more lift. This is accomplished via the mechanics of the pitch change system. The overall effect here is for gyroscopic precession to put the advancing blade at its lowest point at 180 deg rotor azimuth.
The above explanation from Mr Coyles book seems to contradict your description MightyGem, and seems to go against the way the disc should be tilted for forward flight ?