Somone said to keep the balance even, you need to put the same amount of lead tape in the handle as you do on the head. If you put 2 grams of lead tape at 3 and 9, you would put 4 grams on the handle. Is this true? Where and how do you put lead tape in the handle? I don't have experience doing this. Thanks. Also, to provide a bit more stability in a frame, is 9 and 3 the way to go, or should some at 12 (or even 10 and 2) be considered?