It would be nice if the vendors would rate the bat with length, weight, and some measurement such as balance point to normalize "how endloaded is it?".
Not having measured the balance point on any of our bats, I'm not sure there would be a constant throughout the weight ranges, but even an additional +n value to indicate how far that point has been moved out vs. the balanced version would be something.
Bats aren't made by hand. When there is a +/- on the weights of bats allowed to pass...to say every bat has this balanced point is impossible. When you can have 2 bats, the same model...weigh .5 to an ounce different, the balanced point will be different as well.