As I understand it, the A cat class has decided against allowing foils (defined as being able to lift the hull clear of the water). This would appear to leave the door open for the variety used to partly lift the boat as on the Catri to reduce wetted area. I have been waiting to see if they showed up on any new A cat designs but as far as I know no body is doing it. Given the A class passion for innovation there must be a good reason they are passing on this one. The cons must be outweighing the pros. I assume it must be the light air penalty. Do any of you technical guys care to comment?