Here is my 2 cents worth. Ideally what you want is a parallelogram, so there is no bump steer, not always possible. But small compromises are very forgiving. You can adjust to them. It's not good to use your steering box as the stops for steering. I would choose a correctly built steering system than quick or slow steering radius. With a slow turning radius just turn your steering wheel until it hits the stops and light those hides up, it will turn really sharp
Ken