Not a pro, not by a long shot, but I've worked with stencils and airbrushing before. You could use tape of different widths to get the lines you'd need. Otherwise, it's just patience, a good eye and steady hands.i'm just wondering if any of the professionals out there can give me tips or advice on how to get the lines perfectly straight. Are there any special techniques or is it just a case of being very patient until i get the tape perfectly lined up?