This unique deWiz™ feature is made to help you control the distance on your wedge shots. You do this by dialing in different lengths for your backswing. Previously, golfers had to rely on feel or an estimated length of backswing from video, but now deWiz™ gives you an exact measurement of your LoB.
In the app you can set any length of backswing you would like and then practice it so that you can dial that swing in. For example, if your full swing is 140 cm, you can then learn wedge LoB's that are 120, 100 and 80 cm.