Maybe, but we ran something like a master roll of film every week or so, in fully seasoned processors, with the support of an on-site chem lab. And vastly greater amounts of paper which also has to be bleached and fixed. Let's just say that we were licensed formulary users from more than one major manufacturer, which entails a great deal of inside information.
Now that I think about it, I designed the bleach aeration system we used in our 50 ft/min cine processors. C-41 (and its bleach, which I think perhaps PE was intimately involved with) was new at the time, and our bleaching capability was falling off as we processed. I worked from Kodak recommendations with respect to bubble size; too small produces foam, which can build up and possibly overflow into. Too large and much of the air inside of the bubble doesn't contact the bleach, so is not effectively used. So the trick was to come up with an optimum hole size and placement, plus an airflow spec and pressure that would cover the surface of the bleach with pea-sized bubbles that pop easily. Then while running test film we pull samples for our lab to do analysis of the Fe3/Fe2 ratios to see if we're keeping up or losing ground.
So this is part of the real-world experience I have; I don't invent systems, but from the user standpoint I get them to work adequately. I don't invent analytical methods, but I use them. I have worked with the practical applications of these things on a very large scale. I'm gonna show a bit of arrogance here, and say, as the onetime QC manager of that outfit, with a staff of five or six people (including a full-time chemist), I kept a finger on the pulse of an outfit printing, inspecting, dust spotting and shipping A GREATER VOLUME OF PAPER IN ONE DAY than virtually ANYONE HERE HAS IN THEIR CAREER. (Give me an estimate of what you've done and I'll tell you how it compares.)
PE is a rarity, a treasure, and a terrific asset to both to Apug and home emulsion makers, in general. But at the same time, posters should see that it's dismissive to someone like me, who gives a comprehensive answer only to have someone say, "Well, the REAL EXPERT here is..."
It is not that difficult to remove "virtually" all (trace amounts may not come out) of the silver; all it really takes is following the instructions and knowing how to confirm. The need for "experts" can be reserved for more difficult problems.