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Of all the putting training devices on the market, the type that promote an arc, rather than a straight line, stroke path appear to get more tour use.
Arc trainers are based on geometry recorded by ancient Greeks of the body position of a person bending forward at the hips. A forward bend creates an axis of rotation for the arms that is somewhere between horizontal and vertical depending on the degree of the tilted spine.
A significant limitation of applying Greek geometric findings to putting is the failure to account for potential motion of the hands, wrists, and forearms that can become undesirable motion during a putting stroke.
Mechanical putting devices used to show the accuracy of an arc type stroke do not include movable hinges that replicate pronation and supination of the hands, wrists, and forearms. You could say that the mechanical putting devices have nerves of steel.
Proponents of arc type putting trainers hope that through repetition, the potential motion in the form of pronation and supination will not become motion and cause putter face alignment to vary at impact. The fact that short flat putts can easily be missed by even the best players is evidence of the vulnerability of the putting stroke to undesirable motion in the hands, wrists, or forearms.
Two problem areas that the golfer has to guard against are: misalignment of the putter face to the target line, and deviation of the clubhead from the preferred arc. Misalignment at impact can result from undesirable motion in either or both areas.
Various amounts of hand pressure are typically used by golfers to keep their hands still during a stroke. The hands can be relaxed and exert only enough pressure to keep the putter from falling to the ground, but they are vulnerable to any slight amount of nervous twitching or last second dominance by either hand.
Grip pressure can also be increased in varying degree in order to stabilize putter face alignment. The greater the grip pressure, the less sensitive the hands are to help determine distance control of a putt. Even with increased grip pressure, potential motion in the hands, wrists, and forearms can easily become motion and alter face alignment or cause deviation from the arc.
In addition to the pitfalls of potential motion in the hands, the track of the stroke can easily vary outside or inside the preferred arc because of the configuration of the arms as they hang naturally. The arms can easily travel inside or outside of the preferred arc because there is nothing to inhibit this type of motion other than the golfer's ability to recreate the preferred arc when not using the training aid.
Repeated use of an arc type putting trainer can provide a memory for a golfer, but once the trainer is removed for play on the course, potential motion that can cause clubface misalignment exposes the golfer to an increased risk of failure.
The risk for misalignment from the preferred arc can increase as a golfer faces pressure during a competitive round. Pressure can also increase during a casual round if a player is playing well and needs a solid finish for a respectable score.
Variation in height, arm length, and amount of bending at the hips means that a preferred arc for one player will not be right for all players. If you are not within averages for these measurements you would need a custom arc template or an adjustable arc.
There is a biomechanical method that can eliminate the need for arc type putting trainers and place the golfer in a position to make a stroke on a preferred arc path plus keep the clubface square to the target line throughout the stroke.
The method employs dynamic motion during pre-shot alignment, and it can configure the golfer so that undesirable potential motion in the hands, wrists, and forearms is minimized throughout the stroke. The clubface is much less vulnerable to the undesirable motion that can cause misalignment of the putter face to the target line.
In addition, dynamic pre-shot alignment configures the golfer's arms so that deviation from the preferred putting arc is inhibited. After dynamic pre-shot alignment, it takes some effort to make the putter travel off the arc.
The result is that the hands can be relaxed for enhancement of distance control, plus the stroke can be easily repeatable while remaining true to the preferred arc.
Dynamic pre-shot alignment is like having a training device with you out on the course. You won't have to try to recreate the stroke you made while using an arc type trainer, the configuration of your hands, wrists, and arms is essentially the training aid.
For more information about dynamic pre-shot alignment visit www.dynaligngolf.com
Learn a step by step method that teaches how to use dynamic pre-shot alignment in the Golf Shotmaker Manual now available at www.amazon.com
No training aids necessary.
