As Stenson begins the downswing we see a dramatic shift forward with his body, and unlike a lot of the longer drivers of the golf ball you will actually see his head also moving towards the ball. This move means that Stenson will create a lot of lag in the downswing, however the disadvantage of this movement forward can sometimes mean a slightly steeper attack angle as the club approaches the golf ball. However one thing you may notice with Stenson is that he frequently hits a 2 wood (a strongly lofted 3 wood) from the tee to accommodate this. Having more loft from the tee will allow Henrik to hit down on the ball with power, and still hit the golf ball a long way.
As we look at the left hand side you will see the club head dipping fractionally under the original shaft plane and the club coming from behind his hands. This movement will allow Henrik create an in to out path and a slight draw shape to his ball flight.