Sorry Wouter. Its not fair as i was sailing with 2 GPS devices and i took the track with the highest result offcourse. Difference between the two was 0,05 km/h. But anyway, we had an unexpected great day of windsurfing today. It was possible to sail with the JP 54 speedboard but changing material on this place is almost impossible. Sailing with the slalom board was definetly more fun and still fast enough for a speed session.