Mark,
Maybe that Tornado test needs to be revisited with the flat twisty spinnakers we have today and the spinnaker launching and retracting system. All spin boats are faster today than they were than they were 15 years ago and the spin launcher/retractor system has reduced the spin up/down times to a few seconds. I think it is a better test of overall sailing capabilities for the jib/spin boats to race on the rectangular/trapozoid shaped race course.
Bill