I've wanted to do a risograph book for so long, and I love the way Faster came out! Such a wonderful old school look. Now available from @bulgilhan press! https://t.co/q02bAkKKsq
I'm not sure how others do color for color riso, but what I did was color Faster in CMYK as I normally would in Photoshop, then switched modes to multichannel giving me C, M, Y, and K channels instead of layers.
I deleted the Y and K channels and then tweaked the C and M to the colors I wanted.