Thank you victor for your informative post. I've been thinking along these lines for some time now. It was the "micro contrast" thing that I had not heard about before this. It helped to clear up some of my ideas. I've started to taylor my film development times to local contrast rather than over all contrast. Controlling the overall contrast by minimizing agitation and higher dilution developers. I've found that this method gives the less exposed areas time to fully develop and separate fully. My negatives now have a life and fullness they never had before. (in the prints, of course!)