The more I think about the less I am completely against this approach. Instead of applying an obscure set of heuristic by hand, let the LM figure out the best

The more I think about the less I am completely against this approach. Instead of applying an obscure set of heuristic by hand, let the LM figure out the best way starting from a lot of data. The model is bound to be less debuggable and much more difficult to update, for experts. But in the general case it will work well enough.