That's an really interesting question. I don't remember reading about this relation anywhere.. just.. expose for the highlights, contrast for shadows, when printing.
Originally Posted by Dan Daniel
In my example, to bring grey card down, I'd have to use more contrast (more exposure would darken the highlights), but then I'd have really bad separation in everything under zone V. I'd lose the delicate light and shadows, and the print would look way to harsh.
I have another negative with same exposure but 20% shorter development time. I still need to print it to see if there's any difference.