Let me firstly remind you that, when your Brace Shoulder moves first, starts your ‘Down Out Forward & Through Swing’ (Front Swing), you shall invariably get ‘Above Plane, Over The Top and Outside-In’. (see ‘Cut Shots, Fade-Slice Spin Rate’) This is your ‘Clubhead Path’, a critical ingredient to ‘Golf Happiness’.
I you think of your ‘Shoulder Blades’ (Scapulae) hanging back just a little, delaying your ‘Front Swing, Chest and Shoulders Un-Coiling’, (see ‘Lower Body Machine [LBM] Core Un-Loading or Un-Coiling’), your Trunk, and Core [LBM] rotationak action shall be delayed slightly. As you know we refer to this as ‘Lead’.
If the ‘LBM Leads’, the ‘Upper Body Machine naturally falls behind or ‘Lags’. This is highly useful and effective in ‘Getting Your Clubhead On Path & Plane’.