I agree, I wasn't arguing that anything other tha torque causes the airframe to roll. I simply stated that some of that torque is conteracted by the slipstream, which rotates in the opposite direction. I was not attributing anything to P-factor. P-factor is not present in a hover since there is no asymetrecial force, the blades interact with the static air evenly as they rotate.

Since the original question was how to slow down a torque roll, I think it's fair to consider the forces that affect the roll rate which in a stable hover (IMO) are torque and aerodynamic resistance on the airframe

Jason