 The GTF practices Choi's ITF Patterns, but in addition Park added six new patterns.GTF uses the original ITF form Ko-Dang, but never its replacement, Juche.Jhoon Rhee Taekwondo or Jhoon Rhee's Martial Arts Ballet is the style of taekwondo developed by taekwondo pioneer Jhoon Rhee and overseen by the organization Jhoon Rhee International.