In this video golf lesson, instructor Dean Reinmuth offers some advice on accurately gauging long putt distances, which will help golfers to lag the ball closer to the hole.
In the exercise Reinmuth demonstrates, he first takes two practice strokes to set up for the shot, one that is too short and another that is too long. These two shots set up parameters that will help in refining the swing so that the actual shot will be more accurate.
This practice can be used for putting and chipping as well, since it is an even-paced stroke with no forced acceleration.