I remember I had experimented a rotor arrangement including two opposite kites separated by a parachute so that they have a little more swept area.
If I remember correctly, there was a swivel between the rotor and the small kite lifter, and another swivel between the rotor and the main tether. The last swivel was practically ineffective.
Otherwise, this rotor had good traction, but I prefer a parachute of the same diameter as the diameter of the area swept by the rotor in question, because it offers better traction for the same area use.