By moving the link back on the rack, Ackermann is reduced, and by moving it forward, it is increased. These changes decide where the most steering occurs. With the link towards the back, the steering is more responsive, and the car will turn more into corners. With the link moved forward, the car will steer more in the corner and out of it, and it will be less responsive, with less steering into the corner. The more the link is moved forward, the later in the corner the most steering will occur.