I redid my math with my son who is an engineer. I should have used 8.5" as a radius for the caster change calculations. We also have now taken into acount the angle of the strut rod in relationship to the vehicle center line. We calculated the fact that the strut rod locates inboard of the lower ball joint as well. With all this being said and done, this is what we ended up with. Moving the lower arm forward by shortening the strut rod will change caster by 1 degree for every .100" length change. Thus moving the lower arm forward by shortening the strut rod .200" will net you 2 degrees additional positive caster. Hopefully your rod end C/L is in line with your lower control arm pivot C/L. If not you will be in for some toe change as well.
Doug