Tinting on the Fly is mandatory, but i make a colour library if i adjust. I don't just wack whatever it needs, i put it on the scale. Eg if i add 2g of ochre, or whatever, i note it on the back of my card, and i clear it as well, so its true. Keep the card, with adjustments, for future reference 😁
Gray was really popular in the 40s and 50s as you know I'm sure. Then people hit the crazy button in life going in the 60s and the color disappear from what I can tell. Saw a 40s original condition Cadillac that color it was crazy.