Every single RA4 print I've got from, say, 30 yrs ago, whether Kodak or Fuji paper, has somewhat yellowed. All the Cibas look like they were made yesterday except
a few that were displayed in direct sunlight for a couple decades. Newer RA4 materials have allegedly improved in this respect, and I have a number of big prints
displayed in less than ideal conditions receiving daily UV to see what does happen over time, though there is always the possibility I'll fade away first and never know the answer! The problem with color neg printing versus chromes is that technicians just took it in stride that high quality prints from positives were going to be a fair amount of work. If half that amount of fuss were put into color neg printing then they too can be optimized. Yeah, there's an orange mask already; but I regard that
as not really a hole in one. Maybe just a mild putt or two gets it in, whereas Ciba often required a bulldozer to get the ball out of the sand trap. But stunning results were possible. Velvia was wretched to print from, but I did that too. My philosophy was simply to dance with the idiosyncrasies of Ciba - but it was my own work.
I shot for the specific medium. Commercial labs had to deal with what they were given, so I can understand their frustration at times. I happen to mask color negs
about 30% of the time, sometimes contrast-increase masks, sometimes contrast-increase. With Ciba, masking was a given, sometimes even multiple masks.
Ciba was hell to mount and display in large sizes, and fragile to handle. A single kink mark could ruin it. And what really killed it off, at least in the US, were the
baboons in the warehouse of the US distributor, who made sure the paper got damaged. But inkjet would have killed it off anyway. Not the same look. Fuji Supergloss is a worthy replacement and easier and less expensive to print. But I saw the handwriting on the wall, and switched over to shooting mainly color
neg film well in advance of the inevitable.