I am pretty sure the club is still around. I can't seem to find the KU Water Ski Team website on the web anymore, as they could have led you in the right direction. You might look around the KU website for the ski team and they will get you in contact with the wakeboarders.
Hey Ian, I hear there's a guy named Beasley that showed up on campus about 90 minutes from Lawrence. They say he's pretty good with the rock.