Just to echo what Dan said -

If you want any F18 competition at all in Northern California, you ought to get a Tiger. I do about eight races a year in the area, and I've never seen a non-Hobie F18 at any of them. While I rarely get to race against the local Tigers, my understanding is that the competition is pretty good. But what's going to happen to the Hobie Tiger as a one-design after it gets updated?

For personal reasons, I'd prefer that you get the Infusion and sail on handicap with MHRA (www.catamaranracing.org). We've got a regatta at Rio Vista (Sandy Beach State Park) this weekend, in case you want to come by and say hello.