Also an STi checking in
-3 in front, -2 in rear for me. Caster is almost max in the front. Rear toe 1/16th (total) in, front toe 1/8th (total) out.
I used to run straight up rear toe, and the car felt more stable in a straight line... but definitely was unpredictable under braking. The rear toe helped a lot.
at -2.25 to -2.5 camber in the front I had terrible problems tearing up the outer edges of tires. -3.0 SEEMS to be good.