I have learned Ko-Dang (the original Ko-Dang), as I have trained at schools where it is part of the syllabus and am training at one now, in fact. However, I've trained in the style using the "other" pattern with 45 movements (I don't even want to say the name of it) and know that pattern far better. When I was shown Ko-Dang, I learned that the two movements (prior to the knife hand guarding blocks in each direction that end the pattern) are an outward vertical kick (also known as outside crescent kick to some) and a side knife hand strike. I just picked up a book by Hee Il Cho, a nice second hand copy and the final two movements are a sweeping kick, then a downward knife hand strike. I looked on Youtube and I can't find any videos where the practitioners practise it in the way Hee Il Cho shows, only in the way I was taught. What gives? Did the pattern change (I know there was some small changes to some of the others since Choi's first book)?