Ok. Lateral flapback occurs which is not counteracted. This causes the disc to be more oblique to the wind. The angle of attack of all blades has just increased due to the same collective being maintained along with the same cyclic but relative airflow coming from more under the disk, causing more flapback so continued roll. This slows the airspeed, reducing the amount of flapping to equality due to the disymetry of lift reducing. Therefore the rearward (left relative to direction of travel) blade will climb and the right descend. So if left pedal, you get pitch up and if right pedal, pitch down? I guess as airspeed reduces, the yaw will also increase.