Right, that is my understanding as well. The new fit system allows each model to have 3 fits (1,2,3) instead of two (D, EE). But the features of the different models are still different from each other. I believe the Vapors are still asymmetrical and have the X ribs in the heel. Obviously as the OP has identified, they also have the injected lacing system. The Supreme boots have different features (traditional lace system, etc.).