Bill: One thing you mentioned very much intrigues me ... I'll get to it in a second. As David mentions, Rodinal still exists, and lookalikes are available. In
another thread about Xtol, I mentioned a Rodinal-Xtol combination which I am going to try. While Rodinal's rendition of grain in Tri-X, HP5, etc., is sometimes not everyone's cup of tea, there IS the acutance and edge effects, the tonality, that are so very attractive. What I've seen of the Rodinal-Xtol combination is that it combines Rodinal's tonality and acutance with a different (more pleasing?) grain rendition.
Now, on to my comment about ... modern films. You mention that current emulsions are much less subject to the differences in developer. I have no reason to doubt this even though I am not one to try a variety of films and spend months doing film-developer combination tests. But I do know that modern emulsions (even from the last 20 years or so) are much less subject to zone system development techniques, e.g. N+, N- development, etc.
The flip side of this, though, is that I think some of the emulsions are the best they've ever been. I know there are a body of folks who have gnashed their teeth over Kodak "ruining" Tri-X, "It's not like it was!", etc. Yet I find the current Tri-X to be the best ever. I concede that the older emulsions were
different, and that in certain situations maybe they would produce a "better" look for a given shot. I feel the same way about Pan F+, i.e. that it is better than previous versions, though I don't use it a lot so my judgment of it is quite casual. The only other b&w film I'm using with any regularity is APX100, and I like it better than any other film (that I've used recently) in its speed class.
So, not to steer this thread too far off track, and realizing you are mostly using the M8 and other digital cameras now ...
How much Tri-X or other b&w film are you shooting these days? Given your admission that there currently isn't any Rodinal in your darkroom, have you used any of the current Tri-X with Rodinal at all? If not, would you ever venture to give that combination, and/or the Rodinal-Xtol combination a try?
Earl