Quote Originally Posted by odojang
- The Hapkido connection was told to me by Master Blake. When I saw the added joint breaking techniques in the Encyclopedia and asked him about it, he told me that General Choi hired a Hapkido 3rd dan to study the moves and incorporate them into Taekwon-Do's curriculum. He didn't identify the said hapkidoist... but the new techniques are there since 1983.

...

Now, if anyone can add information to validate or contradict this, I am always open to learn... or relearn if need be.

thanks for sharing!
Master Chung Kee Tae was the Hapkido -ist.