I think a good question is, Is the Taekkyon of today the way it was practiced years ago? We know that Lee Yong Bok started to learn Taekkyon in 1984 under Song Duk Ki and Shin Han Sung. Both these men died in 1987 and on top of that Master Song was 94 when he died. So Mr. Lee only learned for three years from a 90 year old man a complete art. Either it is a simple art or other things were added to enhance it.