There are more than 2 CCP boots outside of the prosthetic and usole.
Hockeye, elastic band etc. it's just these two models are the popular two.
But I get your point.
Also in all fairness Augusta has 2 standard model boots. Side zip, double zip....there have been a couple of other misses along the way. But bar tweaking the toe or the heel height and changing the code season to season, they are essentially the same boot over and over again.