@pfaffi
> 30knts and I would like to see one of you with -4cm in these conditions
Yeah, difference in discipline, I would do full downwind with 30kn wind in my 7.0 with -4cm

. There is downwind much less apparent windspeed in the sail with good speed, but I agree if slalom or match racing (competition) its better to pull the outhaul to boost speed.
I do have an adjustable outhaul on all booms even for the 5.6/5.1, because I can't go all day downwind and end again at the place I started

.