Hand painting and using a magic eraser to smooth out the layers. There wasn't too much large area with missing solid color otherwise I would have airbrushed it. After initial cleaning and rub down with naptha and magic eraser I opted to keep what paint remained and dealing with trying to color match and get the paint through the airbrush before it started to thicken was something I didn't want to deal with.
Quoted from topkat:
Can you snap a photo of how you have it isolated when you are painting it? Its looking nice and I am curious what it looks like mid way
I only mask off with light tac masking tape when I need to make long straight lines like the sidewalks, arrow triangle and black arrows extending from P A C M A N inserts. Other than that everything has been freehand with magic eraser smoothing after cure and between coats. The enamel cures very quick and I am able to smooth it within 15 minutes. The only problem with masking over the checked remaining paint is that sometimes spreads out in the area where the original paint is missing, just makes for a little extra cleanup during detail. This repair is nowhere near perfection but it is passing the 5' rule and it should hold up for many years to come or until I find a replacement PF or overlay. Color matching has been the toughest part of this job so far. Due to the condition of this play field I've done a little more experimentation compared to the other not so extensive jobs I've done, I figured the play field was blown out to begin with and the machine was only $150 with just under $250 invested in getting it functional so I don't have much to loose and I might as well have fun and learn a few things from my mistakes!