Wouter,
What type of boat is that in your personal thumbnail picture to the left ?
It doesn't look like a nacra 5.5.
If I had to guess I would say that that is Hollis Caffee old boat.
Very observant. You caught me. Yes that is Hollis Caffee old boat. I have bought it and am bringing it up to the Chesapeake bay area. But thats a topic for another place.