"One thing that I've tried is to sheet out a lot. With a cammed sail this results in the sail suddenly trying to twist itself even more sheeted out, backwinding you, and slamming you into the water very violently. I'm told that this is to do with the flow detaching itself from the windward side or something. So don't sheet out all the way."That has always been a big problem for me, thanks!
I don't think i have clarified my problem good enough, sorry...
The problem is that i am sailing in a lagune with offshore winds. the wind is coming from a city so the buildings makes it extremely gusty. I can be blasting along in 20-25knots of wind, and all of the sudden a 40knot gust hits me. It only lasts for a second, but feels like God just flicked my sail with his finger . So i cannot rig smaller, because it wouldn't get me going properly, and going up wind is not really an option as i only have about a 100m of water between me and the coast giving me very short time to identify and react to the gusts.
I'll try fixing my harnnes lines more forward at trimming the bord flat, letting it ride more freely. Maybe i am just too tense.
any other advise is welcome