1970 dart swinger tail stripe, help needed

The ones on the Dart in my avatar are matte and have held up very well (2005?). They came from Phoenix Graphics and are matte, but repeated application of detail spray have made them more glossy (but still matte) over time. Phoenix will make the stripes in any color that they can get 3M vinyl in. My Plum Crazy 70 Dart that I just completed has "gunmetal gray" stripes that I picked from several samples that they sent. They are gloss (what I picked) and have fine metallic in them that really goes well with the fine metallic in the paint. If you are unsure ask them for samples (like black in all available finishes).