[RickS.]

Hey it turned out great Doug,
It's true there is no bind anywhere throughout the travel once you've determined the sweet spot. The double a arm suspension geometry creates an arc, and that arc simulates a pivot point in space. In most cases this point in space is actually a very tiny arc. The arc is so small that you can just position the point midway along this tiny arc without creating a bind.
Now I’ve called it a point, but really it’s an axis that travels the full length of the buggy. The link can be as long or short as you want as long as the end is placed on this axis.
The same method is used when determining the length of your steering rack pivots on a double a arm front suspension. Determine where this point is and design your rack length accordingly. If the arms are swept up the axis will be traveling up on this angle also.