Not a good ball position if it is real. You may think it is in middle but lay two clubs down perpendicular to one another with one shaft pointing down your toes parallel left of target and the other club pointing from the ball toward your feet.
Anyway, a middle ball position for driver means you are having to shift way back there and over turn your upper and lower body to get behind the ball, then you have to stay this far behind the ball to sweep the ball with such a long shafted club.
Its much easier to stay balanced with the ball at or a little back of the left heel/instep because most of your body is already behind the ball and you don't have to manipulate your body to get behind the ball on backswing.
I'll bet you are way off balance now with that middle ball position.