I'm not sure about that, Andy. Depending on what kind of tuning you are doing, a softer, stiffer, or no front bar may be best. For street driving, where you want to keep spring rates down but increase roll rate, I think a stiffer front bar could make the car feel great: Focus guys have had a lot of luck with setups like that. Also, if you are tuning for autocross or road-race, a little more front bar may be in order, since everything else will be stiffened dramatically.
If you are driving in competition, then whether to reduce, increase, or eliminate front bar stiffness depends on the setup and specifics of the events. For the street, it again depends on the setup, but I think that a stiff bar might very well be nice. For instance, you could run 400 lb/in coilover springs instead of the 525 lb/in that come with the GC kit, and keep the roll rate up with a stiffer bar.
When tuning bars or springs, it important to remember that nothing works in isolation! Two modifications that each make the car slower or less nimble independantly may work together to improve things!
