Saito Sensei gets off the line of attack and uses a distracting atemi.

Step 1

He then takes the grabbing hand.

Step 2

He then goes into the recognizable nikyo omote. Normally, we would zig-zag and take Uke to the floor, but this is where his technique diverges.

This is normal nikyo omote

Saito Sensei takes Uke‘s wrist back in front of Saito Sensei’s body on the way to his far shoulder.

Step 4

He applies a painful nikyo dosa right away on his way to take Uke to the ground instead of merely holding his wrist in a floating nikyo with one hand.

Nikyo dosa applied at onset

... continued

He applies the kihon nikyo dosa near the onset of the omote waza. That is, he applies the S-shape to Uke‘s arm, and attaches the back of Uke‘s hand to his shoulder and then pins. The alternative is to take Uke down as if this were the ikkyo waza but hyperflex Uke‘s on the way down.

The merits of this seem to be that Uke‘s wrist is completely immobilized and Saito Sensei can apply his body power to the small area of Uke‘s wrist.1

About to pin

1. From http://www.youtube.com/watch?v=0f1LOIqmNI4 [↩]