(cross foot in front) flap SHUFFLE single-pullback-end-with-a-flap FLAP
Tip: This one is going to take practice. There is no easy trick. Specifically, practice the pullback-flap. Half of the battle of getting a pullback flap is having the strength to get high enough in the air to give yourself time to get the flap sound. Good luck!
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Bonus Step - No Practice Exercises for Bonus Steps
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