Balance point, in conjunction with hand placement, tells you how the gun's weight is distributed between your hands (% of weight in the right and % of weight in the left). And that is all it tells you. Different shooters have different levels of sensitivity to this factor (balance). There is no one best/optimum location for the balance point. Balance point is the center of gravity (CG) of the gun and is useful in other factors.
The factors in gun handling are weight, balance point, swing effort unmounted and swing effort mounted. Each of these four factors can have an objective (numerical) value associated with it. There are no magic/secret combination(s) of the factors that are best. And, there is no one summative number; you have to have all four.
About those best work guns - - - yes I have, yes I do, and, yes, I plan to continue.
If anyone wants to talk more in depth, so post and we can extend this conversation --- gladly.
DDA
