It would be pretty damn difficult to design any automated system of exposure to predict all the variables. You'd have to settle on a single product, and then just about the time you think you have it
figured out, they'd probably tweak something in the emulsion. Even with Ilford, you've got different VC
products with different personalities, plus Kentmere VC products offered by the same corp. It would be
like trying to write a Zone System computer program for multiple film, developer, and lighting situations. You could spend years fiddling with something that only takes minutes with a simple test