Can anyone tell me the secret of the wushu from flip crash?

its a famous crash used in drunken forms and Di Tang Quan....can anyone tell me how to land it or any secrets or how to learn it? THANK SOOOO MUCH!|||the secret is make your fists firm even in a bent position. When land you usually have your upper thigh touching the ground to obsorb shock from the fall, especially when you are doing the semi flying kick. For the drunken form it is really about good balancing and fast snap attacks.