Dial In Your Speed Like Jordan Spieth

Making putts comes down to marrying the line with the speed, but if you can only have one perfect, make it the speed.

Using a drill Jordan Spieth employs to adjust to green speeds, attempt to hit putts from 30, 25, 20, 15, 10 and 5 feet between the hole and 10% of the distance (30 feet = 3 feet past; 25  feet = 2.5 feet past, etc) past it.