I am putting a 2-2.5” stripe on a truck boxes where it meets the truck liner so right at the top. I always find it hard to make any slight curve with a stripe this wide and trying not to have a splice. What is the best way to make that curve at the end that goes around to the tailgate? I precut the stripe by hand to get a 8’ plus length. Should I leave a good chunk at the end to wrap it then trim with an exacto? I had to splice in the photo below. Any ideas would be appreciated.