I am also a Deb Tucker Wing Clipper user. Before discovering the Deb Tucker ruler, I had been using my Creative Grids flying geese ruler to cut the triangles, and that, too, resulted in perfect flying geese. Now I'm hooked on the Deb Tucker Wing Clipper because there are no triangles to sew together. And also because it trims the flying geese perfect, so I don't have to use my regular ruler to square them up.