Reilly Bodycomb is a practitioner of Sambo teaching down in Dallas, TX. I have been following him for a number of years now and his DVD's on Leg Locks are simply the best available on the market! Not to mention he is one of the most down to earth, nicest cats in the grappling game today.
Here is an excerpt from an awesome interview by Reilly brought to us by US Combat Sports.
What are some of the common mistakes/misconceptions practitioners make when learning/using leg locks?
Reilly: As far as the misconceptions, I would say the most common one I hear is that you abandon position when attacking the legs. I have controlled people in leg control positions for minutes on end, both in sparring and competition. Going to leg control is not giving up position, it is changing position. For most people, it is changing to a position they are not familiar with, so they lose it quickly. I equate it to when new grapplers take the back sloppily and then just end up on the bottom of full guard. Or, when they take mount but are immediately rolled over. Their instructors don’t discourage them from taking the back or mount, they just teach them more and more until the student can learn how to change positions smoothly and maintain control, even when his opponent is rolling around and defending. Leg locks are like this: once you really learn how to do it, you can stay in control of your opponent for quite a long while before submitting them. Sadly, there are few good examples of athletes in the USA who can do this properly. That number is growing steadily, however, and we are seeing more and more Americans who can control the legs as others control the back.