You're welcome. One of the fringe benefits of attending US Sailing meetings and seminars, and volunteering for enough of the right regattas is the chance to meet the rules guys and ask questions like this. Once you get a feel for what they're trying to accomplish, it helps a lot.

Of course, it's an international effort, and doesn't always make perfect (or obvious) sense. Some of the submissions during the change cycle can make your head spin. It's usually the unintended consequences that cause the problems.

Mike