GAB SS on soft setting, is comfier then stock.. On hard setting is good enuff for my liking on track..
that is why they created Roll Centre Adjuster for the DC5..
by the way, based on MacPherson suspension layout, there are no upper arms on a DC5. Unless it's a double wishbone like the older DC2 model. Lower arms are also not much affected when the car is lowered if you are utilizing the RCA. But the tie rods are. :)