Quote:
Originally Posted by stoneage
My formula? It is MgR/I
I just indicated a way to save the concept by skipping the erroneous physics. But it was obviously misguided since most people on this thread just want to believe.
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Sten,
Hundreds of people on this forum have tested this formula and benefited from this simple way to tune a racquet for their strokes. There is nothing erroneous about the formula, and it is indeed based on simple laws of physics.
I think perhaps you are underappreciating the importance of gravity to a tennis stroke. Consider that the takeback on the forehand of every single high level player, regardless of grip or swingpath, has something in common: every player takes the racquet back with the racquethead higher than his head. And there are important reason this:
1. To take advantage of the potential energy of a high takeback, which accounts for a large fraction of the total racquet head speed through the hitting zone.
2. Racquethead speed generated from the potential energy of a high takeback is highly reproducible (because gravity is the same for each swing). This gives a more consistent shot.
In order to best take advantage of the reproducible conversion of potential energy to gravity-assisted kinetic energy during the swing, a racquet must have a mass distribution that ensures that the racquethead rotates through the hitting zone at the speed that keeps the racquetface perpendicular to the target. The MgR/I formula (and the wall targeting tuning method for optimizing MgR/I) gives a very simple way to ensure that your racquet is set up optimally for this.
Please try out the wall tuning method yourself before you dismiss this.