not too sure to be honest, there are degrees of set up too. you can have them fitted and aligned, or you can go for the full cornerweighting setup.
if you speak to the guys at track developments, they can go as far as producing a computer model of the geometry of your car and calculate the optimum position of everything, in some cases they even move the mounting points of the suspension. that is for race cars really though.
best thing is to phone and ask.