I read some complex formula on puting on lead tape, can't really follow. Can an expert give me a rule of thumb on this? I like the balance of my racquet, just want to make it heavier. I put 14 g at 9 and 3, and 14 g under the handle, now it feels head heavy. My question is, if I don't want to distort the original balance, what the ratio of weights at 9/3and handle? I am thinking using a 5 to 7 ratio. For example 10g at 9/3, 14 at handle. Doest this sound reasonable? Mine is Dunlop 300G. Thanks so much.