If the focus is on the type of movement that the kite goes through I’m thinking there needs to be 4 categories instead of 2. One for one dimensional movement up and down the tether, or downwind (ZhongLu), one for one dimensional no movement along the tether (Kitewinder), one for movement downwind and also crosswind (Kitemill), and one for no movement downwind but crosswind movement (Makani).
You just can’t put Kitewinder and Makani in the same category. Yes I could agree that Kitewinder could be hovering, like a helicopter could be hovering. No, I don’t agree that flying as fast as possible in circles is hovering. The focus in hovering is on the stationary part.
I like blade as the level of analysis. How many possible categories are there if you use plant as your level of analysis? Not enough I think.