Squeezing the life out of a C-41 kit

I have had about half a dozen C-41 kits from the time I started doing color at home after a long absence of over ten years.  When I first started to learn to do my own color developing it was about $12 dollars for a pint kit by Kodak.  Today they come in liter size and for about $22 or 2 liters at $35.  Not much money compared to sending off to a lab, but I still try to get all I can out of each kit.  So one day reading through the Flickr and APUG and others, I ran across a subject about the useful life of a C-41 kit.  I wish I could find the original article again so I could thank the person because in some ways is the hero to my color processing enthusiasm.  Kits usually recommend only a limited number of rolls before they advise against further.  However, this fellow stated that if one were to wash between the develop and blix components would be extending overall usefulness of the kit.  So it works out like this:  PRE-WASH, DEVELOP, RINSE, BLIX, WASH, STABILIZE.  Simple really.  So, not taxing the blix step and the developer step is adjusted after every 4 reels of 35mm or 2 reels of 120 in the following step and taking in the progressive amount of exhausting of the developer the times come out to the following tables to give some visualization...

A. Within 1 months    3:15! - 3:30 - 3:45* - 4:00 - 4:15 - 4:30 - 4:45 - 5:00 - NR?
B. Within 3 months    3:15! - 3:30 - 3:45* - 4:00 - 4:20 - 4: 40 - 5:00 - 5:30 - NR?
C. Within 6 months    3:15! - 3:30 - 3:45* - 4:10 - 4:25 - 4:55 - 5:30 - NR?

So the estimated yield of A is about 38 rolls of 35mm film or 20 rolls 120 film.  The 3:15 is the claimed optimum time for the optimum number rolls. The 3:45 time assumes that the immediate use of the kit with a week and the subsequent sessions withing the times stated months.  I however ended up more a B and C use combination.

My rolls were a mix of 35mm and 120 and the final rolls counted was 30 rolls in all and the final roll as pictured about went off without noticeable loss or shift.  The weakest link was the stabilizer in this case.  If I could have pushed four more rolls, but had done this two months sooner...then a count 36 in all.
So the kit mixed middle November was a Unicolor 2-liter C-41 and prepared with distilled water and always air had been evacuated out of the bottles, officially done and dumped middle of June or about 8 months later.