Your right Steve these are not simple questions and I am not qualified to answer them. On one point I may be able to help. I believe the theory on toeing the hulls is the same as toeing rudders. That is, the weather hull will track straight through the water as the result of the boats leeway angle.

If you’re going to experiment your probably wise to only change one thing at a time anyway. Interesting stuff so keep us posted. You might also consider posting your questions on the boatdesign.net forum. There are some brains over there.
Dan