This is for those in the International Tang Soo Do Federation... Is there significance based on the Cho Dan arm patch colors? I recently completed my second recertification and was given a Red-colored Cho Dan arm patch (had none previously). Another Cho Dan in my class, who has been Cho Dan as long as me, already had a Green-colored patch. Is this like our belt system, where green is "junior" to red? Any significance at all? Hoping someone to shed some light on this for me, thanks.