11. Softer springs require an MC location that is farther to the right.
12. Stiffer springs require an MC location that is farther to the left.
Conclusion The most important thing to remember is to take the trouble to measure your car and know where your MC is located. If changes are needed, go ahead and make those changes, doing whatever it takes to move the ball joints or chassis mounting points. You, and you alone, are responsible for how your chassis works. The effort you put into this area will pay you back many times over.