The "leg bridge" concept seems to be ignored in the general "arm bridge" discussion.
The "bridging" is 2 ways street. When you can sense your opponent, your opponent can sense you too. It's better to sense your opponent but don't let your opponent to sense you. In order to do that, you have to:
- build a bridge,
- collect your "information",
- destroy your bridge ASAP (so your opponent can't sense you),
- utilize that information to do your thing.
In the following clip (1/4 speed),
http://www.youtube.com/watch?v=vyDBH...ature=youtu.be
the old man used his left leg to touch his opponent's right leading leg before he landed his left foot. Why did he want to do that for? He wanted to make sure that his opponent's leading right leg won't give him any trouble. He then dis-connect his leg contact quickly after he had collected his information. The information would tell him whether it's safe to land his leading left foot, whether he should continue his attack or withdraw immediately.
What's your opinion on "leg bridge"?