Something that seemed to work yesterday and went on working today, to the extent that I had my best round for months. That was standing taller and a bit closer to the ball, with my head more down than it has been. Not stupidly so, but just enough to be looking squarely at the ball. It seemed easier to stay centred and I hit some really crisp iron shots, taking a divot after the ball, rather than sometimes slightly before it. Even seemed to improve my short game! 
