I watched a few videos and tried the different techniques. In short, everyone else's way sucks, and this is how to do it. First, the right materials. Use Testors model paint, 100% acetone nail polish remover, a razor blade, a supply of Q-tips, and some Hoppe's cleaning patches. A magnifying glass on a stand, and some clean rags are helpful. What not to use? Nail polish and alcohol. Assuming the lower is clean and dry, grab a q-tip, and cut the head of one end off at a 45 degree angle. Stir up your point, and apply as carefully as you can. Don't go crazy with it. Take care to fill everything in. Wait a minute or two till it gets a little tacky. Use the razor blade and scrape off the excess paint. Wipe the blade off and repeat. Don't scratch the finish... Let it dry for another minute or two. While the lettering is drying, grab the q-tip, dip it in acetone, and begin working under the magnifying glass. The goal is to remove the paint smear/film outside of the block text. Take care that you keep swapping out q-tips frequently. You don't need to be swabbing and pushing paint over to clean areas. This'll take a minute or two. By this time, the lettering should be setting up nicely. Here's the secret... dab a Hoppe's patch in Acetone. Grab a 2nd patch and wick the acetone off the first patch! Use this 2nd patch 1st. If you use the first patch straight away, it'll flood the lettering and lift the Testers paint. The 2nd patch is minimally coated. Use this patch LIGHTLY to clean up the remnants left behind after scraping, using LIGHT pressure (lighter than Joe Biden's nose on a woman's neck). At this point, the Acetone on the first patch will have evaporated to a large degree -assuming it's essentially dry/completely evaporated at this point - you can use it to LIGHTLY wipe the area between lettering for a 2nd pass. When done, let the Testor's fully dry, then apply some light oil to the lower to bring the shiny black back. Fwiw, nail polish lifts too easy. Light finger pressure and acetone removes your fill readily. Secondarily, I tried white and red nail polish. The color doesn't pop like the Testor's paint either. With lessons learned, I'll eventually re-do the logo. That said, I'm pleased with the lettering on the rest.