I'm curious Gareth, if you sit between the rigs - on the tramp - to sail the boat without hiking/trapping, isn't it a bit like sitting in a windtunnel with the accelerated flow round the sails?

There don't appear to be any boards, so what is the hull shape that ensures the boat doesn't make excessive leeway?

What is the strongest breeze you've been out in so far? Do you think your design is as fast/faster than a similar sized 'standard' catamaran design?

Looks like an A1 job though, Gareth.