Thanks for the suggestions, guys. Yeah, I think I'm going to tape the board tonight/tomorrow and try just painting those slots. I'll lightly sand them first.
There are crevices within the connectors/retention tabs that a cover just wouldn't be able to hide, so this seems to be the most practical solution at the moment. I'll let you know how it goes.
First, though, I plan to finish polishing all the caps (this goes much faster w/ my dremel) and then testing the board to make sure this hasn't damaged it in some way. I'm confident that it hasn't, but I just want to confirm before I go through the trouble of painting it.
Thank you, noeru! :)
True. But I'm hard-headed and always like to look for solutions to what seem impossible barriers. Sometimes, you get lucky.