Nollster,
One of the problems with practicing that fast is that you will never bowl leagues or tournaments that fast. AT that speed you kind of lose a sense of what's going on and while muscle memory may set in, mentally you may not catch up with your physical self. Plus exhaustion may make the session less fruitfull than you may like.
Of course there's the pure physical release of exerting that much enery and that's always a positive thing.
I have to believe that to get the most out of practicing by yourself, somewhere between 3 and 4 games per hour will allow you to mentally and physically balance the forces and adjustments.
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"We get old too fast, and too late, smart."
