Never understood the need to develop 3 cambered sails apart from going back to the time they used to have slalom and race sails and pretty much killed windsurfing by making it too confusing...
With all these you'll always have the feeling you need one of the other two at some stage during your session and good luck to the shops stocking the correct model/range.
In that sense I guess they are following KA...
Great to see more speed sail options on the market seeing that large majority of guys are into Gps sailing