You might see some slight increase in shadow density by using dilute developers, but what you're referring to is any compensating developer, such as Rodinal or Pyrocat. Your shadow density is based on exposure mainly, what you alter in development of your negatives is the highlights.

- Thomas

Quote Originally Posted by BobNewYork View Post
I've found that extended development in highly dilute developer with intermittent agitation, (2 inversions per minute) lets me build the shadow densities without risking blocked highlights. 'The Film Developing Cookbook' gives an explanation of this which makes eminent sense to me. As a starting point I'd run the Acros 35 the same way as the 120 which has been successful for you.