Front suspension set up and wheel alignment

Just read the instructions on installing the Hotchkis adjustable strut rods. It says, "Next rotate/thead the body in or out to the desired length. Shortening the strut rod can dial in more positive caster." Sounds good but how long to adjust the rod? I guess I will have to measure the old strut rod and go from there. I will be installing the Moog offset UCA bushings to get more positive caster. How much extra should I attempt with adjustment of the strut rods to move the LCA forward?