I used to think that putter balance had to do with the putters ability to hold its line better from further distances but,......
I just loaded the starter putter, then the beginner putter and then finally my L92 ghost putter. This is what I noticed, the meter on the L92 ghost with many dots for balance, maintained its meter speed much more evenly when putts where made by maxing out the power (used full swing) on each of the putter scales, much better than the two free putters. One has no dots for balance and the other has only a half dot.
Try it out, see what you think.
My final thought, a putter with more balance will be easier to "DING" when you pull the meter closer to full strength due to the meter speed staying truer to the rated swing speed of the putter.