But wouldn't custom calibration produce the best result based on different media types? For example I am printing on Japanese Papers such as Unryu and Kozo that differs completely in both paper base color and thickness. Shouldn't custom calibration on different media yield the best result?
"What is a Color Calibration?
Calibration is a process that ensures that your paper is receiving the exact amounts of ink specified by the driver to create your desired colors. Ink output can change because of small variations in ink and paper production, as well as shifts in humidity and ambient temperature in your work area. It is usually a good practice to calibrate your media whenever you open a new package of paper, replace an ink cartridge, or at least once a month."
I am not going there!! The following is for me
"Common Calibration
The common calibration can be thought of as a global printer calibration that is good for general use on many different paper types. With a common calibration, you can execute the calibration once for many different times of media, saving time and materials. Any media that does not have a unique calibration will default to the common calibration."