JUST A GENERAL PAINT MATCHING QUESTION

I try do a lot of small paint touchups with a rattle can. I just cleaned up the peeling and little rust spots and repainted my door jams today.

With all my "modern" MOPARS, I have used "Automotivetouchup.com" with great results.
When I used their color finder on my 67 Barracuda. the DD1 was noted as a "metallic". So, I was hesitant to order that. (They only do standard color mixes)

I found another classic car paint supplier at "TouchupDirect.com", that listed the DD1 as a "Ploy" paint.
(me hoping that it was less metallic)
I doubt that my 67 paint is original, although in places like the door jams I'm sure it was. (Yuck!)
The existing Light Blue body paint seems to have very little metallic; and has probably darkened a little from age and sunlight over the years.

I contacted TouchupDirect about it, and they want me to use their test card and take a comparison photo.
So, that has me hopeful that they can make some adjustment to the formula; while "Automnotivetouchup.com" refuses to do that.

What sources and luck have ya'll Cuda folks had in matching aged paint??