SL4.2 Outside Shoulder Lock from Outside Arm-bar:

Attacker grabs lapel.

• Trap uke’s hand and snap punch to ribs [Loosening-up technique]
• Slide your punching hand between uke’s arm and ribcage.
• Place the palm of your hand on uke’s elbow locking the elbow.
• Push uke’s arm upwards and step behind uke and place his/her arm on your shoulder as you rotate.
• Step forwards in front of uke and slide forwards until uke’s elbow is over your shoulder.
• Lock the shoulder and thro Uke with Tai-otoshi.

Warning: Never practice this technique without a certified AOKK jujitsu instructor present and engaged in your practice.