Curly question. In all the videos I've seen of Keumgang, including the Kukkiwons' own Juchum Seogi is about 4 feet wide. Bit confusing when "The explanation of official taekwondo poomsae states that Juchum Seogi is only 2 feet apart. The book and the video are Ikpil, Kang. You can clearly see him turn his foot at one part of the video straight after Juchum Seogi so 4 feet wide is conservative.