I'm printing some banners and business cards with variations on a single design (banners coming from two different places, cards from a third place). The design has some very light grays in it: 4% 7% and 15% K.
For the banners it's possible for me to add a spot colour. So I am wondering, is there a better chance of the light grays showing up properly if I:
A: Set all the greys to be tints of Pantone Black.
B: Set all the grays to be tints of say, Cool Gray 3.
C: Set the very lightest gray (4%K) to be Cool Gray 1 at 100%. And keep the other grays (7% and 15%) as process tints.
D: Stick with the process black tints.
I'm designing the banners in Illustrator. The material is fabric for one and vinyl for the others. Unfortunately I think its too late to get physical proofs made.
Thanks very much,