I think using fresh developer or (if you very frequently develop c41) using some kind of replenished system would be a better option.
I really have very severe doubts that the film from batch 4 will come out looking very close to batch 1. This can (will) be a problem if you're making a series within which you need good consistency. It may be fine if you shoot single frames and optimize color balance (esp. digitally) on a frame-by-frame basis.
Btw, I think the math is odd w.r.t. to the sheets/rolls equivalents, if I read the table correctly. 10 sheets 4x5 = ca. 2.5 rolls of 135/36. After all, 4 sheets 4x5 = 1 sheet of 8x10, which roughly equals 1 roll 135/36. It would be more or less correct if the '35mm' refers to 24-frame rolls.
I also have my doubts. Thats why I sent that table to the Bellini support to ask if those calculations were correct. And they confirmed that it is well within the margins of the developer. I have. not tried it, so I can't say if it works of not. Anyway. I will as suggested use fresh developer. A replenish method is of course better, but difficult when doing the small amount of film I will do.
About the math, its based on 10*4x5s = ruffly 4 rolls of 36 exp 35mm film.
So far I have found the 5L fuji to be the best solution for my Jobo. Using the minimum amount of developer + some. That would give me:
33cl / 4x5 sheet (unconfirmed required amount) for Fuji.
That would make for 330 ml / drum (10 sheets) * 15 = 150 sheets, 1L or 15 drums.
But being more conservative using 500 ml developer.
500ml / drum (10 sheets) x 10 = 100 sheets, 5L.
And with the Bellini 1 L kit, it's good for 44 Sheets according to the spec.
That would then be 22 cl / sheet * 10 = 220 (have to add developer to reach minimum drum requirements.
So lets say 250ml fresh Bellini developer I could theoretically do 4 drums = 40 sheets.
Cost
Bellini 1L - 40 sheets / 50 EUR = 0.8 EUR / sheet (0.92 USD)
Fuji 5L 100 sheets / 110 Eur = 0.9 Eur /sheet (1.04 USD)
