Originally Posted by Yokomo_Ant3

What he said isnt correct. When you add weight to the front of the car, it makes the car more stable because there is more weight over the front wheels, making the car less resposive and more dosile to drive. The opposite for the rear. But if you add too much weight to the front of the car, the car may transfer its weight to the rear, making it inconsistant to drive. Its important to find what works for your car and track conditions. If you have too much steering the weight up front may work for you, if you need a little more add it to the rear. Thats what I have found anyway

HTH