The way I understand gray component replacment is that black is used more and cyan magenta and yellow less. The goal is a net reduction in the ink...
Anyone using GCR with their color copier or digital press? Or is GCR mainly for offset?
Do you do your CMYK conversions manually or let your RIP do RGB to CMYK conversion for you?
What color space are most working in? sRGB? adobe 1998 aRGB? CMYK from start to finish? Or other?