Mass vs. Pressure in the Down Swing
Do you know the difference between mass movement in the lower body and applying pressure? A lot of golfers move all their mass and pressure onto their back leg during the back swing but fail to shift the pressure in the down swing and just move their mass.
Jon demonstrates how you can shift that pressure opposed to shifting your mass, as the mass will follow the shift in pressure. This is a common fault with most golfers that can lead to inconsistency in your ball striking.