Differences between a legit Bandit Deep Walleye and a knock off bandit deep walleye are the size of the blanks and the shape of the bill. The knock offs are 1mm wider at about 16mm and the legit blanks are at about 15mm. The knock offs have a more square end of the bill where as the legit blanks are rounded. There are some knock offs that are really close in size to the legit blank. Measure the side of the blank in between the front two hook hangers. If the bait measures close to 16mm order the BKO stencils. If the bait measures close to 15mm order the Bandit stencils. Both stencils will fit either blank but will not clamp around properly. You would have to use one side of the stencil at a time when painting.