The body is like the movements of a swimming dragon, a wild goose ascending the emptiness, a tiger crashing, a turtle diving, or a snake slithering, turning the circle at will in connected and united postures, angled or crossing, advancing or retreating while talking and laughing.
Dong Haichuan (The founder of Bagua on walking the Circle)
Wang Xing Qing
Master Zhao Fujiang studied and practices Baji, Xing Yi, Da Cheng Quan and a few other styles
Wudang Wu Qin Xi
Reference: daoistkungfu youtube.com