We know that basically only a half-circle from hip-height in the downswing, through impact to hip-height in the follow-through is where things truly matter, and that’s what great players all have in common, but that doesn’t mean they don’t have preferences for the rest of the swing.
My preferences include a lot of hip and shoulder turn and a short and wide arm swing, which allows you to use the ground and your body pivot to square the clubface.