Texas Karate Academy - TKA and American Top Team Beaumont

Bruce Lee's "Tao of Jeet Kune Do"
Random Excerpts:

To develop proper distance and penetration against a moving target, use a partner equipped either with a body protector or an air bag. He can either stand still and take the brunt of the kick, or he can back away from the attack. The former teaches proper application of the kick, especially valuable in teaching beginners. The latter training is to teach penetration. As soon as your partner thinks you will attack, he tries to back away as fast as possible. This practice is valuable to both men; one learns to penetrate and the other to back away quickly. The body protector is sometimes used for sharpening the attack. The partner will not attack but will maintain a correct distance in a ready fighting pose. As you begin to attack, he will try to counter, block, or move away. You will have almost the actual feeling of hitting your opponent in a