Welcome to the forum @GtwingsSupport.
Our technology - GT Wings: Wind Assisted Propulsion for Commercial Shipping seems to implement high lift coefficient rigid sails with flats and slats, and directing airflow (also used in commercial airplanes to increase lift during takeoff and landing), air suction to still increase the lift coefficient (Cl) just like Co-Flow Jets, or Turbosail which could take some elements, and perhaps replace Flettner rotors.
Personally, I do not have a precise answer to your questions. Maybe you will know better what is about, since you work for GT Wings.