gps-speedsurfing

What's the present view on the ideal angle in really strong winds; for example in Luderitz when it blows 40+?

I ask because a lot has changed from when I was last spending a lot of time at this; then 135 was the ideal angle but the speeds were much lower and the fins were not assy + the sails mightn't have been as powerful off the wind?

120 to 150.
ITALIANSURFSHOP