This really is trial and error. The best advise I can give is first of all make sure you are writing down all of your settings and make very small adjustments at a time. This way you will know where you have been so that will help get you to where your want to go. My experience is this, 1.0 - 1.5 camber in the rear on a FR with pretty high -toe in the rear usually helps. Some very slight + toe on all non-drive wheels have given me some good results. hope this helps buddy.
