If you do end up stripping and starting over, here's a tip for getting cleaner lines/reducing bleed. Mask your area as normal, making sure you press the tape down well, use a razor to cut out the masking, then make sure it is still pressed down well. For the shield, since you're keeping bare metal against the red, spray some clear on the area that is going to be red, you'll spray the red over top of this clear. What this does is seals the tape/masking edge. Since it is clear, you won't really notice if it bleeds. Then spray the red over the clear. You'll still clear the whole thing after you unmask and have your colors down. I use this method when masking for a two tone paint. Normally you use two colors, but the clear will work the same since you're keeping some bare metal.
