When you fly a bit slower with a semi-rigid (teethering system) you won't experience a roll-to the right, maybe very slightly. With a fully articulated rotorhead the roll is almost none anyway (it can be to the left obviously with a clockwise turning main rotor) The fact that the rotorhead is rigid to the mast and the rotordisc has a certain mass there is basically no roll. There is a yaw however.