Strut Rod Question

Man I'm confused. Once you get the bushings right and install the adjustable strut rod, what good is the adjustment capability? Aren't you gonna create play between the bushing and rod?

OR, isn't pulling or pushing the strut rod going to create a side load on the LCA?

I'd really love to know all this stuff. I'm just getting ready to put my front end back together with the poly bushings. I'd love to do it the best way.

Also, how is caster adjusted on these A bodies? I'd love to be able to get 4 degrees positive, but I've been told "ain't no way".