Wouter, I am using a uni main. However it is new and I am still working to get it set up right. I am playing with battens in the top of the sail to get the entry right and to ensure the top of the sail stays flat as the rotation is brought back and the mast stiffens. My main looks quite a bit different than Karl's new main. It looks to me as if Karl's follows Matt's idea and is smaller and flatter in the head??? Mine is bigger in the head. The "fullness" is basically the opposite of a sloop main, full in the bottom and flatter at the top.
Pete, I do agree that we have no one who is really good sailing uni but I think the comparison should be between crews of equal skill. You professional level uni sailor would have to beat a professional level 2 up crew. I am not sure we have any of those sailing F16 in the U.S. either. I am not really looking for a rule change but it does feel as if uni is getting further behind.