One issue to keep in mind is that more heel = more weather helm. If
you're dragging your rudder sideways, you ain't going fast!


However, there is a sweet spot where the boat will gain WL, have good VMG and
not increase wetted surface.
The rest is gobbily gook and pretty obvious. Clearly a vessel heeled to far
won't make much VMG and have a flawed track.

RB