Wildyard, I am Karen (hehehehe) and I don't take the time to worry that I have two sets of corner triangles the same .... in a big quilt, i just don't care ... I don't want to lose my lined up fabric, so i just cut them the same ... personal preference I think. Also, you probably actually did a hexagon quilt (6 repeats instead of an octagon having 8 repeats). The hexagons don't have corners, they fit together themselves in lines. YOu add the corner triangles to the octagons to make them squares, but someone already said that... sorry!. They are awesome!