Wouter-
For sure, the Nacra 6.0 was a brute of a boat designed for Worrell 1000 survival. The Inter20 was already a bit more civilized despite no major improvement in weight. I have yet to try the new HT class boats, but based on their designs I imagine that they are basically 2-up versions of an A-class boat. I don't know Spitfires at all and I am way too big for an 16ft boat. Tornados seem to be somewhere between a heavyweight F20 (like a Nacra) and an A-class.

Mike,
I still make sure I am fit enough to swim a mile or so if necessary. You never know if someone will not be able to pick you up.... :-) Actually, I broke an A-class mast in a particularly nasty alpine wind on the Adriatic called a Bora/Burija, but otherwise I have discovered that catamarans sail so much faster with the pointy end up....

Matt