adjustable LCA?

I am thinking about buying a set of adjustable LCA's. The question i have is,how do I know when they are adjusted correctly? I am running 3" of lift.

They are adjusted correctly when you can get the caster as close to factory spec yet keep your driveshaft angle at minimum. It's the ying-yang adjustment method.:twak: . An anglefinder on the top of you upper ball joint is a good place to get a decent measurement for caster. I use 6-8 degrees of caster and a high angle front driveshaft, that works for me.