Hi Todd, I used to have this happen to me until I started using blue tape on my cuts outs. Before removing the whole pattern I would pull off the blue tape first and then all of the dark pattern cut off pieces would either drop off or lift off. What was left, I would push out with an exacto knife, then I would remove the rest of pattern using Goof Off. It drys off clean. Not sure how deep the bleeding is but when it has happened, I usually had to sand it out. When I do my paint-in method for tires and the like, if I go outside the lines, I use a razor blade to scrape the over run paint (acrylic)Hope that helps.