You've got good replies here, including one from a former 5.5 National Champ (Mike Wilson - 1st post on Catsailor! <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />).
Awsome boat - you can really drive it hard downwind, and it has a bigger slot (more forgiving) than alot of other boats. Tough and reliable, balanced sail plan, nice helm once tuned right. You'll love it.
John
1996 5.5 National Champion Crew <img src="http://www.catsailor.com/forums/images/graemlins/wink.gif" alt="" />