One Shot is generally better than most paints you find in Art Supply or Paint Shops, since it has been made for "the sign painter's trade" for decades and not for all us amateurs.
But I never used that metallic gold One Shot so cannot give a first-hand review. I'd trust it to flow out better and have better coverage than most other enamels, but no idea how ANY popular clear-coats will interact with it.
You can test and give us the results, professor...thanks and best of luck!