We have had all those boats as classes in the past.  Forming a 'new' class requires five boats registered for all five series.  Any of these boats are welcome in our "Portsmouth" class.  How about AERO RS x's or 420's? Should be easy to form a class, but all are welcome in our Portsmouth class.

Portsmouth includes (partial list)

Hobie Wave(mh)

All boats mentioned above

Vagabond 14

Sweet 16

FJ

Capri 14

Day Sailor

Nacra(mh, various)

Mscow

Pulse 600

Prindle 18-2

Corinthian 19

Oday 19

Snipe

and many others