After really long consideration and research I think the most economical thing for me to do is to either stack up rolls and buy kit were belach and fix are separated or give it to a lab. I was hoping to somehow get the HC-110 effect it can be stored forever and doesn't go bad. I do not shoot enough 35mm to replenish actively, for me the cost factor also plays a major roll.
if you buy a kit the cheapest will be anyway the Compard sold by MACO. They have very small kits, for you shipping will be real cheap:
Compard Digibase C-41 Mini Kit für 500ml
that said the bigger the kit, the cheaper by volume.
as for yield/shelf life, I always have 2 or 3 sets of dev, bleach, fix in the fridge, I keep the ones getting close to exhaustion for developing unimportant pictures, and sometimes the colour shift may be fun.
Typically as I said earlier I do 30 to 35 rolls/liter.
See the dates I mixed these ones, dev is from july last year, bleach and fix from march this year. Dev in this one is getting depleted recently, blueshish colour shift, so I keep for playing once in a while. Bleach and fix are still good.
I read also that Fuji CN-16 should be used only for fuji films for the best results and Kodak Flexicolor for Kodak films. Can you tell the difference if a Fuji Pro 400h film is developed in Kodak Flexicolor instead of fuji CN-16?
I use mainly Fuji Hunt, if sold out Compard or the other way around. Sometimes Tetenal , the dev only, not the blix. Never noticed differences. CN-16 is just the Fuji name for C-41. Agfa had also its own name.
For years it was said that Compard/Digibase is repackaged Fuji...
And I'm talking about the outcome of development kits were fix and bleach separated. Because the outcome of using Blix is worse?
outcome is similar, at least when not reaching depletion. What I dislike with blix is that you don't have control. Blix is by nature unstable and prone to degradation faster. Separate bleach and fix are perfect: if one becomes depleted or you have a wrong manipulation and contaminate one, just replace it with the separately sold Compard parts. Easy also to visually have an idea of age/usage.
the other day I developed two rolls of 10 years expired Portra-400 with a dev mixed two weeks ago that is now used 20x, and the bleach and fix from march this years (on the first picture). Couple samples: