The Chin na shows the close up method of doing the wrist lock properly but I do not like their lack of movement or the large space they keep between them when doing the lock to throw.
The first clip,top,showed the step in at angle and top slide to grab,notice the instructor is able to push the attackers arm forward and cause an overextension of the strike and an immediate turn back to itself and the lock / take down.
Too much space here also.
The second clip shows an arm /hand slide underneath the incoming strike /knife.
You have to roll over to the top to make the grab /push and rotate back to lock / throw.
If I were to use the arm/hand slide control from underneath,I would slide under to control direction as shown but then continue the slide under and wrap my hand around the arm getting an elbow lock /break.
I would go with the top one,as it affords more control to redirect,push forward and bring back to lock and throw.
Good for strike and knife attacks.
You must work close and always close into the attacker.
WW explanation is on track.
