There are a fleet of Formula 18s as well as A-Cats. Slightly better number of Formula 18s racing as a general, but not absolute rule. There is only one Tornado I have seen in years and that is Mike Dobbs. I am sure he would love to have you down for some competition.
If you are interested in the Formula 18 group you can contact either me or John Williams. There are many others you can contact as well, we just happen to be at this forum on a regular basis.
I live in Long Beach and have an email list for the Formula 18s on the West Coast with which I try to inform everyone what is going on. I know most of the F18 sailors in the area. For that matter most of the A-Cat sailors as well.
In San Diego, if you are interested in A-Cats, you should contact, Dennis, Matt, or Ian. They are all at Mission Bay Yacht Club.
Good luck with the move,
Dan DeLave