Keep the heel ahead of the toe
Feel like you are whipping the inner quadrant with the heel ahead of the toe. With the wall in the proper spot, the trail arm straightens while pressure on the side of the handle stabilizes it; if the wall is lost, the toe kicks over and the ball goes left.
Channel: stayhandsy
Watch official source at 40:53Why this context matters
Release and face-control feel around the inner quadrant.