C3 is camber overall. In Mervin speak, Camber dominant, Rocker Submissive. Camber is the king of energy storage and assists in transitioning from edge to edge and in boosting. The rocker section can help the contact points break free when fully weighted. The downside of camber is that the contact points are down and can get sticky (and trip you up on occasion).
Why are they reversing the tech? I could see adding the tech to the lineup but why completely reverse it yet still call it the Billy Goat?