i dont know if this can be adjusted but less caster degree in front will give you more steering, but it does become finiky and hard to drive meaning more attention is needed at all times when driving. there are all sorts of other suspension settings to look at depending on how you want the car to handle. toe in in front would mean that you will have sharp turn in in a corner, but the car would be finiky at the exit of the corner and the opposite with toe out, the car is a bit more finiky in the turn in, but coming out its easier to handle. but under most driving conditions i dont think you would feel much of a difference. these settings apply more to track racing where the car is closer to its limits. and the thing to remember about suspension is that it is about a total balance, what is done to the front affects the rear in some way and vice versa.