If we learn to bring the putter face square to our target line, we’ve eliminated a huge pile of missed short putts :)
Use the Putting Laser+ to show your eyes what square looks like. 
Use the Putting Impact System to instantly know if the face was square when you impacted the ball.
Use them together to create an indelible image of “square”.
Put all your attention on this single principle … nothing else for 50 strokes.
Let me know what you learn :)