I looked in the Newbie links and i didnt see a thread devoted to bow balance. I realize there are very few ways to change the balance of a bow, mostly with lead tape or possibly changing the grip material. What are some good insights to where a bow should really be weighted for good agile playing? I play mainly Jazz but i am keeping up on my classical studies and will be in the market for a new bow soon. Any Pointers? What is the "rule of thumb" for balance?