I have done some training in Nishio Style Aikido and I recently attended a workshop with Jess O'Brien on Xing Yi Quan. I was amazed at the parallels between the two styles. There are very striking similarities. I can easily believe that O'Sensei had some training in Xing Yi while in China. I also watched the Qi Dao video. Qi Dao looks almost exactly like the warm up exercises we do in Aikido.