While reading the KISS racing facebook page I notice they are changing how they do their races as of Feb. As I understand it, instead of joining a race in CAT A, B, C, or D based on your w/kg, they will have different length rides you can choose from (like in the TDZ). All CATS then just start together in either the long or short race, and you are automatically put into the Zwiftpower results in whatever your race category is on Zwiftpower.
Kind of makes me wonder what the point of the different CATS is at all - perhaps it just makes people feel a little better if they come 10th in their CAT rather than 110th overall?