Ryan,
My intentions were never to confuse anybody. Everything in which I spoke about is 100% related to paint matching on gas pumps, cars, trains, ect. and I tried to explain on how a color can vary even if it is a perfect match. So I'm sorry if for some reason giving a basic explanation and leading them to a qualified paint supplier, with the technology they have with their paint camera can and will help in getting their desired formula.
And as for this not applying to most modern cars, that's absurd. I guess in the future when a topic arises about my profession or expertise on this sight I will just simply chose to ignore it rather than offer my help.
TONY