I own one - the Nacra F18. The Blue Nacra 20 is owned by my Team Seacats teammate, Frank Moore, but I keep it at my house and do the maintenance on it.

I wouldn't say that you can't stand an H16 hull - it's just that over the years, some of them have become soft. That can be caused by a lot of things other than standing on the hulls and nearly all catamarans can suffer the same fate if not maintained properly.

Hobie has several designs on which the trampoline connects to the hull in a similar manner - the Hobie 18 for instance. It's just all about what the boat is designed to do.

My favorite boat? Anything with two hulls. I've owned a Nacra 5.2, a Nacra 6.0, a Hobie 18, and Nacra F18. I've sailed extensively on Nacra 20s, Hobie Tigers, and a little on the new AHPC Capricorns and the new Nacra Infusion. If forced to choose one out of those, I suppose I would probably choose a Nacra 20 but it would be a narrow margin.