I offer to show results of my experiments with color developer dilution
I'm inclined to agree, David. I was getting some strange and inconsistent color-shifting, and a commenter recommended the starter.
Keep in mind, though, that I was using very old chemical concentrates, so my first guess would be that my Part C concentrate is weak due to age. It's too early to tell currently, as I've only mixed up one 1L batch (the original, without starter). The non-shifted negs look perfect, though!
Well, that was easy (re Flexicolor starter)
3. Composition/information on ingredients
Weight % Components - (CAS-No.)
10 - 15 Potassium carbonate (584-08-7)
1 - 5 Pentetic acid, pentasodium salt (140-01-2)
1 - 5 Sodium sulphite (7757-83-7)
1 - 5 Sodium bromide (7647-15-6)
At first investigative blush it would seem to me that w/o the Starter, one has a crippled Flexicolor that might display unwanted properties.