I have been looking at the Danensho kata as performed in the Kosho line. Here is some history I found on a karate blog: Robert Trias learned some Xingyiquan from a guy named Dongjixing (T'ung Gee Hsing) in the solomon islands where he was stationed during the second WW. RT was a large framed navy boxer who was taken to school by a slight frame chinese guy in the ring. Dongjixing was of the SunLuTang lineage and apparently trained together with Choki Motobu in Okinawa. Their mutual research produced kata called GoPaiSho, NanDanSho, and DaNenSho.