The way I understand the issue now is that the Bernoulli law itself can not fully explain the pressure differences found over the wingsection that load to a certain lift. And this is very much corrected in my opinion. Only problem I see here is that I don't remember anybody in this thread expressing the opposite believe. At least we agree on this part of the discussion.

This makes me think about what started of this tangient. It was Gentry writing that adding a jib to a mainsail hurts pointing less than what would inititally be expected and the reason for this was that the upwash of the mainsail will make the jib work at a better angle of attack then it would be without the vicinity of the mainsail. I think we found ourselfs in a tangient that doesn;t help us on this initial topic.

Wouter