Today, I was with my "Speed" board at Herkingen. The spot has a long dam straight into the lake, about 700 m long.This old board (F2 Sputnik 270, 80l and 52 cm width) sails upwind very well ! I had a 6.2 NP RS6 6.2 and a 30 cm slalomfin. In the gps plot, you can see the upwind tracks in red at the yachting club side. Had a wonderfull day, with some new pr's !