One further thought. Mr. Robert Pace, a very experienced printer has these thoughts about making a more interesting print.
Use color transparency film.
Contrast mask the film with one color light
Make your negative with the mask in place using a second color of light.
His contention is that this method allows for far greater manipulation of tone reproduction than just the use of a B&W film in conjunction with a filter.
These thoughts are stated in his self-published book "Masking" which is the best reference that I know about on the subject of masking.
I apologize for being somewhat off topic but it seemed to fit the discussion at hand.