First Principles Submissions Defense Volume 1: Arm Locks by Stephen Whittier

great

Absolutely fantastic! I can't recommend it enough.

Principles First

If you want to learn phenomenal techniques then buy Danahers videos. If you want to learn principles that once understood you can apply in many different aspects of your game and which will continue to surprise you with their usefulness then check out Whittier. I am finding this first principal style of learning to be easier to remember and apply than trying to remember a bunch of different techniques. That being said you will get the most use out of whatever you train against live resistance that is uncooperative and unscripted. So get Whittiers instructionals and a good training partner and practice these escapes against progressive levels of uncooperative resistance and your defensive Jiujitsu abilities will skyrocket. You cannot go wrong with this.