Debbie Doniger, a former LPGA and LET Golf Professional, has parlayed her playing experience into a successful career in golf instruction. She is the Director of Instruction at Glen Arbor GC (New York), a Golf Magazine Top 100 Instructor and a voice on SiriusXM PGA TOUR Radio. Debbie joins "On the Mark" for a second time to help you to a better, more efficient golfswing, by way of specially designed drills and practice. Debbie shares 5 drills to improve your understanding of the correct feel, motor patterns and spatial relations of specific areas in your swing, from the Top of the Backswing, to the Transition, to Impact, to Post-Impact through to the Follow-through.