[BerntR]

I realise he's tracking the sweet spot. But there's a discrepancy between the sweet spot lines and the contact point with the ball on the bottom drawing. At least for the most angled clubs.

How high on the ball impact happens is a direct function of effective loft at impact. If the drawing was correct, a driver and a 64 degree wedge would have almost the same launch angle with ball back in the stance.