It is very difficult to release the ball with the same speed, but some dealers can do this. It is called a dealer signature. As long as there is little or no deflection from the metal stops on the roulette wheel it is possible to predict where the ball will drop. If the number repeats within 100 spins you can turn this to your advantage as this is a biased wheel. A biased wheel is one of only two true opportunities to overcome the casino's advantage. You must buy in chips before playing roulette and exchange the colored chips for regular casino chips when leaving the Roulette table. Try to avoid 5 number bets, as it has the least profitable payback of all the bets. 7,89 is the house edge of 5 number bets. Never play American Roulette as 00 decreases your chances of winning. European Roulette is more in your favor. If you play the European Roulette and make the even outside bet use the Surrender option. Never spend more than you have planned to.
One of the strategy for roulette is boldness. This is a strategy where your goal is to double your money. In a negative expectation game, your best chance of doubling your money is to bet it all once on red or black, or even or odd, and cross your fingers. You'll have a 47% or so chance of doubling your money.]
Remember that there is no any roulette strategy. Thus never buy any strategy. Set a goal before you start gambling. Stop gambling if your goal is reached.

As a gambler you know that when playing Roulette there is a certain period of time in which you can make bets. Traditionally players are given about 60 seconds in between each spin to make bets. Players have a few seconds after the dealer spins the wheel. When the dealer raises his hands and says "no more bets", you must refrain from making a bet and wait until the next spin of the wheel. When the balls drops into a slot on the roulette wheel, the dealer will place a marker on the table that corresponds with the slot that the ball dropped into. Then the dealer removes all the losing bets from the table. Then the winners get paid and the marker is removed from the table. Players are not allowed to touch their chips during this time, or else they could be removed from the casino. Above all else, just be courteous. Make sure that you are respectful to the dealer and the people around you, and also offer the dealer a small tip every 10th spin or so. The last advice here is avoid drinking alchocol.