Hi Guys,
Even Professional Printers can be suspect!
Many, many, many years ago I used to help out in my uncle's print shop. Treadling the Arab printer which had a beautiful stallion embossed on it, or trying to keep the Heidleberg on tune. It was a two man outfit plus me occasionally. After a while it became obvious that i could mix ink colours better than the partner. After a little longer it became obvious that he was genuinely "Colour Blind"! It was all downhill after that!
Phil
Luck is infatuated with the efficient.