I used to have a rudder craft rudder on a Balboa 26. They use a NACA foil like profile so the rudder generates lift as well as redirect water. It was a noticeably better rudder than the original. You do not have to turn the rudder as far to get the same turning power, which means you drag your rudder less and therefore don't slow down your boat as much. It also feels better in you hand when you steer. You will love it.