I love seeing these process threads so I thought I'd toss my hat in the ring. . . heres a recent poster for Starfucker. The print is 3 color, 2 pinks and metallic silver on black paper.
Creating the letterforms separations.
Washout > mixing the first color:
Layer 1 > light pink, there seems to be quite a bit of show through with the pink on the black paper this is going to require a few hits to make it opaque. Its going to be a long night.
Layer 2 darker pink:
Layer 3 metallic silver:
Done and Done!