Color balancing is impossible!

[mnemosyne]

mnemosyne, 1' at 100F works fine with RA-RT developer replenisher and no starter. It is out of spec, but just fine. I've used it for years and years since RA4 came out.

And the proper color balance is often critical to making good saturated colors.

The last I checked, both Endura and Fuji had almost the same whites, but keeping could mess either one of them up.

PE

The 100 F comment was not so much in regard to the color balance but more an attempt at giving a possible explanation why some very subtle (assumed) fogging of the white borders might turn visible in Jobo process while staying invisible in the tray process.

 

[mnemosyne]

I would not use old paper, the Kodak Endura mentioned, as unknown and variable color shifts will prevent you from establishing consistent color filtration settings. I tried that once and stick to fresh Fuji Crystal Archive II.

Kodak Endura Premier is the current RA4 offering by Kodak, nothing wrong with that. Of course I assumed that, regardless of the brand, the OP is using fresh paper. Else all bets are off.

 

[Photo Engineer]

The 100 F comment was not so much in regard to the color balance but more an attempt at giving a possible explanation why some very subtle (assumed) fogging of the white borders might turn visible in Jobo process while staying invisible in the tray process.

Ahh, but I've used both Jobo (100F) and tray (68F) processing with no border problem.

PE