Thank you Jüri K. (there's so many Jüris here); I should have listened to you from the get go. The wind wasn't even that strong: We were all on medium gear. Actually, I think I damaged my fin in a previous session: need to sand it a bit. It was a long time coming but now I have my 35 knots. Upward an onward to 70kmh (38 knots). Oh, and I probably should learn how to jibe :/