good choice, I have a friend that has some on his s13, The only thing that I can say is make sure that you set aside some time after installing them to adjust them. They took almost two hours a coilover just to adjust. But who knows he was anal about everything being perfect. John
make sure there all the same outside of the car so that when they are on the car you only have to tweak them a little. you should probably only adjust ride height and dampening i wouldnt mess with the spring until you decide if they are too bouncy for you, if so drop the spring perch so that you have a lower compression on the spring, or you could adjust dampening by itself, but that will only be part of the problem.