C'mon guys, I know you love your F16's but the guy is 6'4 and 230lbs! The F16 route would leave him single handing only. F18 or N20 can get you to the distance races comfortably. Go with a Tiger and you have a little less leeway with crew weight. The Nacra Infusion is a little better with more weight. At your weight, I would highly recommend the N20 although the more competetive crowd is heading to the F18. That's not to say the N20 fleet is any sort of a pushover. There's still plenty of very competetive sailors in it. With your weight, you wont be dissapointed at all with the N20.