Full turn!!

Too many golfers use the shaft position at top to determine the length of a backswing. The position the shaft gets to in backswing is determined by pivot (lower body), rotation (upper body) and arm extension and shoulder flexibility. Many players whose proper backswing leaves the shaft ‘short’ of parallel often make a fundamental mistake to move the shaft farther therefore hurting their ball-striking. Often they collapse elbows, ‘flip’ wrists, lose braced back leg, or get arms/shaft totally off plane. Jon Rahm is great example of player who makes a full 90 degree shoulder turn but doesn’t allow any breakdowns so the club doesn’t travel very far. He still generates power and makes very solid contact!