So anything goes as long as the boat weighs in? I was under the impression that Carbon was not allowed, to keep the cost down, except for the boats that already had carbon masts (Stealth).

I saw a really neet spinnaker snuffer setup on a Tornado in Zurich, it was a carbon tube molded right into the pole which was quite large. Inside the mouth of the snuffer hole it had a neet roller setup across the top to help the spin go in easier. It looked expensive!

If you go with a carbon setup though you can glue stiffeners around the holes and midpoint, or even add tabs to the pole without drilling into it.