There have to be decal edges somewhere. You mask, then paint around the side art edges first, and deal with touching up within the side art borders later, if it really needs it. On the 3 cabs I did, I left the side art imperfections alone, as they didn't look so bad after the entire cab around the art was fixed. If your cab is covered in pica vinyl, then the side art is placed over that, then your only option to 'get it right' is to strip the entire cab, wrap it in new pica vinyl, then have someone scan, vectorize and screenprint you some new side art. About $3500-5000 later (depending on how large of a run they make you pay for) you'll have a mint Smash TV. If you have someone like GameonGraphix print you the side art as laminated inkjet, then you'll only be into it for about $300-$400, as the pica vinyl alone will run you $100+. Or, you can do what I did and mask the side art edges, spray the old black vinyl with black Rustoleum Fusion for vinyl paint, pull the mask, use a razor blade to trim down the paint edge, then use a small brush and a glossier black paint to touch up the black of the side art, all for about $10.