Well, I'm no expert...The first thing I would have actually cited is the air pressure. I have 0.2 bar less air pressure in the front (with four identical 165/80/15 tyres), 1.8 in the front, 2.0 in the rear. My springs in the front are slightly harder than original spring, 140 pound springs, the dampers are set slightly harder than in the rear. Toe-in is (from memory) about 2.3 mm and what also makes a difference for better turn-in in my case is 1 degree of negative camber.
I have had new chrome kingpins since the spring. Only after fitting them did I notice very clearly how much the old kingpins had worn out. I have much better control regarding the steering movements.
