Hey I've read that Funakoshi makes a reference to bunkai for the Spinning Top throw in Naihanchi Kata. If I remember correctly he states that the gedan barai is used for the takedown. But I'm asking myself isn't the Kagi Zuki more important to press against the elbow joint of the Uke? First the gedan barai graps the wrist pulls it to his hips and the Kagi Zuki completes the takedown with locking the elbow. Please correct me if I'm wrong.
My second question isn't this technique quite similar to the ikkyo technique of Aikido?