several months ago there was a topic on solvents for paint removal. I tried looking it up and could not find that specific article.
my problem is that when i block off one color and paint the other i get the blocking agent removing some paint. then in desperation i try patching with a brush and end up with irregularities in finish. looks good unless you look relatively close then look tacky. there is probably an easy or easier solution to this problem.
mikeg