What kind of experience do you have? That's the biggest question I think. If you are really green and just getting into sailing, the more complicated the boat the more likely you are to be turned off by the sport. Not to scare you off, but the modern boats power quickly too, and if you don't know how to manage that power they are a handful at best. Most everyone on here started with a H16, they're durable, cheap used, and easy to unload if you want to move onto something different. BUT, if you're coming from another spinnaker boat, then the transition wouldn't be all that hard.

CRAW is made up mostly of F16's and F18's. It's a pretty even split with a few other boats here and there. They race on handicap, but the difference between the two main classes is pretty minimal. It's basically boat for boat. No matter what kind of catamaran, CRAW would welcome you. Don't think they'd turn you away if you showed up with a Hobie 14 or something.

I have a 2012 Viper I would like to sell if you are interested.