The design used for canine discs is aerodynamically imperfect. The natural flight pattern of the disc, when thrown parallel to the ground, is for the disc to taper off to the right when thrown with high arm speed. (The disc will taper off to the left if thrown left-handed.) This takes a bit of distance (25+) yards to see. For this reason, when throwing for distance (30 yards +) it is advisable to put hyzer on the disc during your release.