This Sunday I did my debut sail with my Stealth F16. The boat was only rigged with the main sail. It was a beautiful day, sunny weather and light winds. The boat was lovely, it reacted very quickly, and it was fast even in very moderate winds. After a while the wind increased, and I could feel the boat really taking off, great! The boat is much faster than my old Hobie 16, but that is no surprise :-) I logged 27 km/h (approx 14.6 knots) on my gps wrist-watch, I think the boat could have gone faster but I was to much of a chicken at that point to sheet the sails harder. I think that is amazing speed with just the mainsail. A cool thing is that I can upload the log file from my watch and view it on Google earth afterwards, to enjoy the ride again (from home) afterwards.