How to do.. haedong kumdo SWORD PLAY: Duncan Hall, left demonstrates haedong kumdo at the Cresset. (6DL0117600) Picture: DAVID LOWNDES CO-ORDINATION and me have never been great friends. Throwing, balancing, moving different parts of my body in opposite directions at the same time – all of those activities have a distinct possibility of leaving me either lying in a heap, or injuring my..