I often wonder if they use it because it's so good or if they use it because they're so good.
In other words, is it using that grip that is making them so good or is their outstanding ability opening up doors with that grip that are closed to others.
Could it be possible that this "top ten" grip is an advanced technique that mere amateurs won't get the same advantage from, in the same way that we won't get much advantage from certain kinds of discs? For example, it occurs to me that the top pros all have super-huge bomber arms that have no need for distance-enhancing grips. They could probably throw a driver 400' flat-footed with whatever grip they like, so with no need for distance-enhancing grips, they all choose a more control-oriented grip.