To make more sense of this, the International Tennis Federation, the game's law-makers, have produced a chart which simply matches the coefficient of friction (friction) and coefficient of restitution (bounce) to produce a court pace rating.

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Still, Wynn is entering into a deal with a company that has played a massive cat-and-mouse game with federal law enforcement.

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Caronia is game-changing if it becomes prevailing law because, for decades, the prohibition on off-label speech shaped how pharmaceutical companies did business.

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"This game will give us first-hand experience of the law changes, " he told BBC Radio Newcastle.

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Alas, the tax-loss game has got a little trickier because of a law change.

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On Friday, two San Francisco, California, officials wrote a three-page letter to Major League Baseball Commissioner Bud Selig to ask that the 2011 All-Star Game be moved from Phoenix, Arizona, if the law is not repealed.

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In short, a business that is already outside normal anti-trust law (thanks to an ancient ruling that treats each game as a discrete activity within a single state, and thus exempt from the laws of interstate commerce) would become even more like a cartel.

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