Balance: Static measure of weight distribution in a racquet and measured from the butt end in inches and/or centimeters. Commonly referenced in "points" head light or head heavy - each "point" represents 1/8 inch. Generally speaking, heavier racquets are head light to maintain maneuverability, while most of today's super-light racquets are head heavy to supply enough mass (which translates into power) to the area of the frame where the ball is being contacted. A 27 inch racquet with a balance point of 12-1/2 inches is 1 inch, or 8 points head light (even balance would be 13-1/2 inches). A 28 inch racquet with a balance point of 15 inches is 1 inch (or 8 points) head heavy. Static balance ultimately affects swingweight (see below), which is a dynamic measure of racquet maneuverability.
I found it on the stringforums not long ago...
