The grey tanks are used all the time. Doesn't matter what the paper is. I rarely print B&W and I rarely, to never, print on fine art paper and my grey tanks are depleted just the same. My favorite paper is Pro Platinum form Canon. I use it 75% of the time. The rest is mostly paper from Red River which has a proper profile for each of their papers.
If you have a scanner and a printer and a monitor, they all can have different color renditions. Three different ! I think in your examples that the contrast is off and if it were equaled out, those samples would look pretty good. There will come a point where you are chasing your tail and it is all the better it can be. The Pro-100 is a fine printer. It is capable of outstanding results. But in the end there is a place where it is as good as it can be. After all it is a consumer printer, not a lab printer. In my case I am mostly concerned with skin tones. When I get them right I am happy.
EB
EOS 1DX and 1D Mk IV and less lenses then before!
