Let's find the area of a square using a double integral (please provide a general formula). Then, let's consider the case where the integrand is not so simple. P.S. 2, Vic: I'm getting to the point... Balance is a multi-parameter function. Some of these parameters are themselves functions of many parameters, which also act as independent variables in the balance function. And when changing one parameter (patching, as you like to call it), you need to calculate not only the direct influence of the changed parameter on the balance function but also the influence on other parameters, which, in turn, are functions (of some of the changed parameters) and not independent variables. Conclusion: If the developers have stumbled upon a local multi-parameter optimum (by chance, randomly, however it happened), it's far from certain that changing just 1-3 parameters (based on readily available, purely obvious expert considerations) will lead to the same optimum. This needs to be rigorously justified, not just pushed through, understand? And not just at the level of promoting new content. Probably...