I currently train in Tang Soo Do under the International Tang Soo Do Federation and all of the masters in the ITF that I have met, wear the Midnight Blue Belt with a single red stripe through the middle. I have seen pics of Choong Jae Nim C.S. Kim who is president and founder of the ITF wearing the Midnight Blue Belt with two red stripes. This is the belt of a Grand Master, generally considered at 8th Dan (though I have been told that Choong Jae Nim does not like to be called grand maseter out of respect for his teacher, Grand Master Song Ki Kim, who is still alive and has also been photographed wearing the GM's Belt). You will also see this belt worn by Grand Master Ho Sik Pak (8th Dan) in Vol 2 of his Tang Soo Do Manual. I can list the meaning that I have found on the Midnight Blue portion of the belt but only speculate on the red stripe. The midnight blue belt signifies Autumn, Maturity, Water and it's animal is the turtle. In autumn the leaves fall and are gathered to the ground and nurture the soil just as Tang So Do is passed down. Water is the strongest element as it rust's metal, rots wood, quenches fire. It can take any shape or form, is powerful yet peaceful, and is necessary for all life. The turtle is long lived, moves purposefuly, will retreat if threatened but can fight fiercly if necessary. Blue also represents the Uhm from the Korean Uhm Yang. This is just speculatin on my part but I would wager that the Red Stripe in the Master's belt signifies the eastern philosophy that in the Uhm, Yang is always present and that it is the balance of both forces that represent wholeness and harmony. Therefore, the red stripe signifies wholeness and balance or Pyang Ahn (Well Balanced, Calm, Peaceful, Safe, Confident and Comfortable). I will make it a point to ask my Sa Bom Nim and even Choong Jae Nim the next time I see him and find out if my speculation is correct. Hope this answers part of your question.
