thanks for the responses AND the fun forumulas!
the chemist-guy i mentioned made the comments about the lack of silver & poly vinyls about 4 times in the conversation ( maybe more! ) and said that when he was feeling up to it, he was going to work on his "secret formula" to compensate for the reticulation. yeah, i am generally clueless and gullible . just the same, i didn't really have any reason to doubt him since he was the guy that did ALL the film /paper/developer &C microscopic-analysis for the photo lab index for 50+ years ... but you never know, he might have sensed my cluelessness and was having a little fun with me