[Horse]

well- it would seem to me that using a single wiper would not help the aerodynamics all that much- and then when you really needed it you wouldnt get a large swept area and hence if it ever rained - youd be better off with no wipers if you are looking for aerodynamics- because of the height of Cobra windshields the single wiper arm will not be long enough to clear the water from the drivers field of view- BUT its your car do what you like