The emblem overlays from 6LE didn't fit right, maybe I was not applying them correctly. Regardless, I ended up removing, painting (paint used: Testors Metallic Black enamel), and reapplying the factory SS's.
The black-painted logos are more subtle, I thought the bright red SS clashed with the Garnet Red of my Camaro.
The rear emblem is now level (I measured) to the ground, not angled with the adjacent body line.