My camber in the rear is screwed up and I need some help deciding which way to go about fixing it.

One choice is with these shim plates. Available in +-1/2 and +-1 degree increments. The price is $89 (seems steep to me).


My other choice is with FocusCentrals tubular rear control arm kit. This offers full camber adjustment as well as losing some more lbs off the ass of my car. Unfortunately you also need to buy the coil-over kit to work with these new control arms. Cost of the control arm kit is $279 and $229 for the coilover kit which uses my existing shocks. Pictured is the drag setup with no provisions for a rear sway bar they offer the traditional setup wtih provisions for the sway bar as well.


The blue pieces shown are the actual units which adjust the camber and the top two pieces are the front kit.

If I were to go with the FocusCentral setup what rate springs would you suggest be optimal for a street car with the occassional auto-x on the weekend? I have coilovers up front and I believe progressive rate in the rear at this moment.