Actually, moving the inner pivot of the steering arms outward near the same point of pivot as the radius rods will makke it much better. That's my plan with the rack steering. Yamaha used to do it for the factory racers on the SX chassis, Polaris has been doing for a while now as has skidoo. I will post up my results as well as pictures when I get it figured out. I have parts from a snowcross skidoo on the way and plan on having it complete for this season.
sno-tek used to make a rack system along with their unequal length radius rods for the sx chassis but their site hasn't listed it for a while. There have been several people on here that have made their own and I plan to do the same.