Sergio's Spine Secret

Sergio leans his upper body away from the target at address (about 10 degrees) with his left shoulder higher than his right. If you try this (and you should), be careful not to open your bodylines in relation to the target. See how Sergio keeps everything (shoulders, hips, knees and feet) pointing parallel left of where his clubface is aimed? These are rock-solid setup positions (seen easily with the help of Motion Golf's advance swing-analysis software) that you should copy.
— Top 100 Teacher Mitchell Spearman