Roger Long wrote:
"Gary" wrote Hydrodynamic lift illustration

As you can see in the attachment, the boat is sailing to windward on
a
close reach or close hauled. Notice how the boat does not sail
perfectly
straight, but rather at a slight angle (yaw)(angular component).


That would be leeway, right?
Once again, the goal being to minimize leeway and heel to gain maximum
speed.

You have conveniently snipped your initial statement that was the
genesis of our discussion:

"Balance of sailboats is a huge myth. The whole CP, CLR, Lead business
was just a way for yacht designers to look scientific. The fact that
you can make huge area changes, such as the mizzen, without much helm
angle change shows how silly the whole idea is. There are schooners
with 10% negative lead and they sail fine."

I still call you on it!

You've had yours pulled ;-)

http://www.navy.gc.ca/oriole/crew/sh...mandteam_e.asp

Of course your designs might not respond to huge sail area changes.
They are not exactly leading edge technology, but I am a fan of classic
boats. (I own a Bill Garden sloop)