I remember a tv comercial in Korean with Pu Gil Kwon in the 80's. I also have his book on the Tae Geuk poomsae. I don't know his background or stats. Can you tell me more about him?
I don't really *know* much about him; I've only heard stories.
Off the top of my head,
• that he was a student (along with Park, Lee H.) of Kang, Suh Chong (who later went on to found the Kuk Mu Kwan)
• that he was some sort of special forces/assassin for the South Korean gov't
• that he once (or more that once? at least once) did a breaking demonstration when he broke a board, then took one half of that board and broke it, then took one half of THAT board and broke it so that there was only an inch or so of wood showing between the fingers of the holders and that he was still able to break it
• that he was a bit on the crazy side ... in that he was prone to violence such as:
• that he once had a disagreement with (the late) Terry Gibson (who trained with Dan Inosanto, I believe, after moving on from the Moo Sul Kwan) while at a party at Lee H. Park's home. His response was to pick Gibson up and slam him into Park's new dining room table, breaking the table in half
• that he would not hesitate to challenge other Korean grandmasters to fisticuffs over a disagreement, yet respected Lee H. Park due to Park's knowledge of and skill in the art of Hapkido
• that Park wouldn't teach Pu Gil any hapkido because he thought Pu Gil was dangerous enough just with his taekwondo

and a bit on the crazy side
• that Pu Gil for awhile had a school out in California or somewhere out on the west coast
These are just stories, mind you

but they come from reliable/multiple sources