Here’s an interesting bit of video sent to me by Stewart Squire in Australia. At round 1:55 in you can see two of the players start fighting. Notice how the dominant hand is used for striking and the other hand (in this case both player’s left hand) is used to get a tactile feel for where the other player is. This is an almost intuitive method of punching that we make fundamental use of from day one in karate i.e. one hand locating and pulling while the other strikes (using proprioception). Sadly the purpose of the “pulling hand” is not always recognised and the hand that ends of the hip is attributed no function. However, one of the key functions of hiki-te (pulling hand) is to help locate the enemy in the chaos of conflict. I’ve got a few drills I teach at the seminars to show how effective this method can be; but the key point is that is that it is intuitive and natural and I think this is a good example of that.
All the best,