Hello all

I am trying to match our sheet-fed press to ISO 12647-2 as close as possible.
The best Lab numbers I can get for primary colors are (white backing):
Cyan:                 58,1        -34,7        -50,1
Magenta:        49,1        75        -2,9
Yellow:                89,3        -3,5        92,8
Black:                17,4        0,8        0,6

Numbers are close to ISO, but I would like to be closer. Specially Cyan and Yellow could be closer, but for that it looks like I have to change ink manufacturer.

Q: Should I try to get closer or it's just a waste of time (hair-splitting)?
Please, I need your opinion!

BTW we make color proofs with ISOcoated_v2_efi.icc, and actually I'm trying to get my press closer to proof. But that's same as ISO.

Thank you for your time!
regards,
Juris