As stated above, the balance points are equivalent to 1/8 of an inch of distance from the center point of the racquet.
On a standard length racquet (27 inches), 10 points head light would mean that the balance point is 1.25 inches from the center of the racquet (13.5 inches) towards the handle. Your balance would be 12.25 inches from the end of the buttcap to be exact.
Hope this is helpful.
TW Customer Service