I was watching some youtube videos of some HK wing chun practice in a park recently. In one of the videos two local wing chun guys set up a portable mook jong by strapping a board with wooden arms sticking out of it onto a tree. Has anyone had any success with building something like this?
Here is the video (about 6:20 into the clip)
http://www.youtube.com/watch?v=g9LEDe7F8vY