After experiencing with using lead on different parts of different racquets over the last 5 years, I have arrived at a conclusion. If you are playing with a very stiff racquet like many pros do, then you can add lead as you wish to your taste. But if you are using a flexible racquet then you would better add minimal lead to the racquet head (4-6 grams) since adding more to the racquet head and/or base makes the racquet very deaf. I think flexible racquets can not tolerate the added weight and loose their playability. Any comments?