QTR-Quadtone RIP

Seems my friends don't like the forums. they just call me!! Since I don't know, I ask here! A friend has been printing with a 4800 and PS 3, on QTR for years, quite experienced.
Since doing the CC upgrade, prints on the same paper, same settings, all that stuff, are a hair less sharp, and a but "grainier". Prints were made from the same images to make sure. They did extensive testing to prove the difference, and insist they are on the correct side of the paper (my suspicion). Nozzle checks, all that.
This makes no sense to me, has anyone seen this kind of problem, or know of anything that could cause it?
Thanks,
Tyler

So they went from ;Photoshop 3 to which version of CC? That is a big jump. Also, doesn’t the version of Photoshop not really matter to QTR?

well of course PS3 worked perfectly, in every way, but eventually they had to change, it seems impossible to stand still. Whatever is the most recent CC version is what they have.
I honestly have no idea about PS versions and QTR, but I can't imagine it would make a difference. Anyway, this is why I'm asking here.. you never know, someone may have experienced the problem

Could be something as silly as a “color space” mismatch from the old version to the new. Like Dot Gain +20% vs Gamma 2.2

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well of course PS3 worked perfectly, in every way, but eventually they had to change, it seems impossible to stand still. Whatever is the most recent CC version is what they have.
I honestly have no idea about PS versions and QTR, but I can't imagine it would make a difference. Anyway, this is why I'm asking here.. you never know, someone may have experienced the problem

_

HI Roy, they tried to force matching colorsync behavior by using your LAB RGB profile, SInce SOMETHING will happen in CC, attempting to control that something seemed wise. I still suspect another issue, like perhaps the paper batch, it was a new batch. I don't see how graininess or sharpness is a color management issue, as you note. Will make note of your resolution comments, and will report back if the issue remains consistant without a solution.
T

I should add, the only thing that would explain this problem, if it was due to the PS change, is something basic about the way per channel data is being handed off to the printer. SInce there are hidden things now going on with data with regard to color management beyond our control, and grayscale vs RGB handling has suspiciously been changed, it seems anything is possible. My assumption though, is that if there are no other reported problems here resulting from a CC upgrade, I guess that is unlikely. But always worth asking.

Things worked so well in CS3, feels so good paying more for things that work less well... but that's another conversation, probably in a bar.