Interestingly enough, I tried to avoid my own interests and thus tried to "solve" the issue by referring to Haist, and then I tried letting someone else quote him. It seems that people will not even believe this venerable author's comments. And, outside of my interests, I spoke directly to Grant and others at EK in the time frame from about 1970 - 1985, before I started emulsion work, and the entire trend of developer design was towards Dimezone or Dimzone-S.