[firstgenaddict]

With your spray outs for color matching...
the biggest thing you will probably find is how the metallic "lays out" in lacquer VS Base Clear...
The way it lays changes the color sometimes directly & sometimes on a 45 degree sideshift.
With metallics if you see changes VS original on side shifts they make metallic pigment which will stay the same viewed directly and darken OR lighten the side shift
OR
Stay the same on the side shift YET go lighter OR darker on the direct.

When you roll it over on the rotisserie - get the color scanned by the paint supplier.
Spray out a minimum amount on your card CLEAR it then check... UNDER FULL SPECTRUM LIGHT...

If it doesn't match then figure out where the problem is... side - direct - color - etc and get the appropriate tints and a good gram scale

Pour off your scanned (known mix) into 4 jars jars, make every jar the same amount BY USING A GRAM SCALE.
Example:
PROBLEM ~ too dark side shift -
I would make up 4 jars with 50 grams of mix color -
JAR 1. add .5 grams of the lightening side shift - 1% - spray out... too light,
JAR 2 add .25 gram - spray out - - too dark --- split the difference.
JAR 3 add .375 grams - spray out ---

This is how I did the last 3 and matched the original Lemans Blue, Cortez Silver, and original Light Copper Metallic.

As you can see by the photo of the Cortez Silver... 2.5 g 806J / 432.8 g of code mixed = somewhere just over 0.5% per volume.

The jagged line down the center is a ripped tape line.

LEFT ORIGINAL Code 69 Cowl sides 1969 SS Camaro 12C ---------------------- RIGHT Chromabase spray out clear coated - for match.