Quote Originally Posted by Norm View Post
The UK equivalent of the American Bureau of Weights and Measures once ran tests on roulette wheels and found a tiny tilt of the wheel can cause noticeable bias. Many casinos in the US rotate roulette wheels from table to table nightly.
Most biased wheel players and trackers know to memorize a unique visual characteristic of the wheel in order to locate the wheel overnight. This procedure mostly just serves to make it harder for the casino to work out how its losing money.