Very nice. I actually don't think he was out. If he's hitting his mid and is able to take off with some extra space behind the box, then it's a free takeoff! Kudos!
One improvement for Mick to work on would be to allow the bottom arm to bend slightly so that the shoulder angle is more open, allowing the left hand to move back so that is directly over the head, before pressing up and "realigning" to vertical.
Here's the correct position:
http://www.mansfieldathletics.com/image ... ke-Off.jpg Notice how the bottom hand is directly over the head.
Mick is stopping short of this position and blocking his chest and shoulders from moving forward with his bottom arm. The result is that his swing must break halfway through, and he is forced to tuck to get to inversion.
Correcting this will:
1) make the pole move faster - since the bottom hand doesn't stop short and rises a bit longer, the pole moves with it
2) create a more "elastic" condition in the shoulders, allowing for a more dynamic and powerful swing. If he executes is correctly, you will see a longer and faster whipping trail leg to a more inverted position, and it will feel almost involuntary for him.