December 20, 2020. "On the Mark" podcast host, and noted golf instructor, Mark Immelman shares a daily tip to help you improve your golf and lower your golf scores. The tips are simple, easy to understand, and most importantly easy to apply. Advent Tip #20 addresses two important matchups in successful golf swings - matchups between the body rotation, trail elbow action and clubface alignment for open-and-closed face golf swings.