I am finding this discussion very interesting. In the quoted article, the author notes that his model assumes that the tire loading is equal at all times. Which means that the weight transfer effect on the tires Billy described is not factored in. As speeds increase, weight transfer increases and there would be continual transition of "optimal" toe setting from out to in. So it seems to me that you would select a nominal toe setting based on intended tracking (toe-out for autocross, toe in for road course) and then tune the turn in response using shock adjustments to control the weight transfer characteristics of your car. I'm thinking that the sway bar is primarily for controlling the amount weight transfer, not the rate of weight transfer (though as it is a type of spring it will affect that too). Continuing my line of thought, stiffening the front end of a car would increase weight transfer and push the car toward the "happier with toe-in" end of the scale perhaps?