sergio garcia , does he reverse pivot?

[video=youtube;x2inaGWCFQE]

video from last week. could only rest the phone on the side so the angle in rubbish. attempting to hit a high draw.

thoughts from a grey morning in nyc.
width stance narrow so not going to give you much stability during a turn, as shoulder turn/spine angle posture is giving you an issue would be easier if your shoulder width matched the 'inside' width of your feet.

although as said you not a great angle you can see that you are losing the angles as you get to the top (pause at 14secs) the right leg straightening out is pushing the right hip up which then pushes the spine angle to tilt towards target at top & causes you to come out of posture which results in a ways flat shoulder line at top of swing - if you placed a club across shoulders here handle end at left shoulder the butt end would point out towards the horizon good ways too flat instead of pointing just a few feet to the ground over the ball target line.
shoulders too flat means the shoulder turn unable to complete as chin & left arm blocks movement.

start of the takeaway if you can feel the upper left arm in contact with chest wall (so there's no lifting away of arms disconnect from the body) but the left shoulder turns/rotates downwards not straight back level so the shoulder plane is rotating at the 90º to the forwards leaning spine angle set at address so not changing that relationship.

not a lot to be learnt from such an individual swing motion or set-up as Jim's - but his shoulder plane at top isn't flat.
same is true of Garcia - who does increase the angle between his left arm & shaft at start of his downswing with his wide takeaway to narrower downswing to extension again through impact.