Qi Sau - Finding the path of least resistance

Some different styles of Qi Sau ... 

Single arm parallel Fuk Sau-Tan Sau, 8-point drill, Cross hand-Cross leg, Parallel arm-Cross leg Qi Sau
Master Kaan Firat with Wing Chun Kids
Take Wing Chun Chi Sao to the Next Level with Circular Strike
Master Kaan Firat - freestyle qi sau