Off-axis 3 or off-axis back flip? Interesting...they're the same thing. You can try this: Cut out a little motorcycle, stick a coffee stirrer through it, and twist the stirrer 360 degrees. If it's perpendicular to the paper (90 degress from vertical), you get a flip. If you tape it to the side (vertical), you get a 360. Stick it in 45 degrees from vertical and you get this thing. I would argue that since the axis in this case is greater than 45 degrees from vertical, this would be an off-axis back flip.
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