Originally Posted by
Lonestar
Well - the angle of the steering link is what makes the "interesting" difference, the steering angle as a function of the servo input will be different with different servo arms and I'm not just talking longer arm => more throw. It's funny how people love to talk about 0.5mm of shim here and a quarter degree of camber there but oversee that one! Simple geometrics, really,
dude 
What I've found is that it "mellows" the steering response when you use the short one vs the long one. That is, of course when all end points have been readjusted to be the same. Not by much, and it may very well be just my imagination, but that's what I found.
Martin Paradis