I sail a H-18 and am a member of CRAM. I dislike sailing portsmouth but with so few Hobie 18s around its tough to get a fleet, even at a "Hobie Regatta". I would love to get a F-18 but $$. (My wife states that if I spend that much it better have a motor & keep her dry). I will sail anywhere that I am welcome and has some good racing. That means that I will sail in OCRA, CRAM and Hobie Division 10. If you can, buy and race what everyone else is in your location. The choice of boat has a lot to do with your local dealer & their support of the local regattas.