A signature of many styles of Aikido is the out-splayed fingers or “Sword Arm.” This is not seen in Aikido Kokikai®, so have we thrown out ki extension? Not at all. The point of eminence has moved to the point of connection. Ki is extended through the wrist which is the normal point of connection with uke. It concentrates the ki extension and puts it where it is most useful. The hand is already a POW and the action is all at the front lines. So, we extend ki there, where it can do the most good.
There are other benefits as well. The wrist is curled therefore digits are protected from “rounding errors.” Splaying the fingers also weakens uke’s grip, though useful at times, it is not when you want to promote connection to influence them.

