"Cyclic" is what they call the controlled movement of your swash. When you move the right stick, youre tilting the swashplate and changing the pitch of your blades. This is what makes it move forward, backward, and side to side.When you make these movements youre really moving the cyclic. "cyclic response" is the speed that you can make these movements. The Bell Hiller mod increases the speed of your cyclic response.