On the control issue, just an ignorant question. Why is it harder to control a cat from the trapeeze downwind than a 49er, 29er, 18footer etc? What is the physical difference making it harder on a cat? Might it be that we are just a bit less skilled at it?
Two stringing downwind on the Tornado was a buzz, and we rarely did it as the VMG often went haywire, but if it was a race winner, we would have worked on it until we got the skill.