Warren Bennett of the Warren Bennett Golf Academy demonstrates a specific lead arm forearm rotation technique to help golfers 'find the slot.' By externally rotating the lead elbow toward the target at address, golfers create the necessary space for the trail arm to drop naturally during the downswing, effectively curing an over-the-top path.
Rotate your lead (left) forearm so the elbow points toward the target at address to create space.
Avoid pinning your lead arm too close to your chest, as this often leads to a dominant trail arm and an over-the-top move.
Maintain the external rotation of the lead arm throughout the backswing and transition to ensure the club stays 'back' and 'in the slot.'
This adjustment acts as an 'anti-pull' or 'anti-slice' mechanism by governing the trail arm's path.
Feelings in the swing come from movement; practice the rotation slowly to internalize the new path.