Finally, the help sheets for the Yudanja patterns are now live on Spinning Kick. I’ve researched them as well as I can, but I did find there was very little information out there for the World Taekwondo patterns after the Taegeuk series.
Similarly, the higher up the Dan grade pattens I went, there was a lot less information and videos to go. Hopefully, you’ll find the help sheets useful for your training, and don’t be put off by small variations in moves/names. Some clubs might call the techniques by different names, or perform the pattern with slight variations.