This is a method spotting bias wheels with out defect spotting.
Credit: García Pelayo | Spanish version from: Grupojoker.com / Mekaniko | Translation: Victor/VLS

How to spot biased wheels

In order to spot a possible wheel bias, since we don't own them to make physical measures, we have to recur to statistical analysis of its behavior, and here we really have to use Mathematics.

It is necessary to investigate if a roulette wheel does have a behavior which deviates from the expected for a perfect machine, and in order to achieve this we have to know first how would this machine work perfectly. For this purpose I created the "positive" concept. If after 36 spins a number comes out once, there won't be any positive nor negative. If it comes out twice, we have a positive (+1), if it appears three times, we have two positives (+2), etc. If it doesn't show at all, then we have a negative (-1). We base this on the accounting for the actual financial payout, not its real probability which is to come out once every 37 spins.

How many positives a number can have after a certain amount of spins at a perfectly balanced wheel? Or rephrasing the same –and this question is valid for the game and many other aspects-: What are the limits of pure random luck?

I built a computer software which emulated a perfectly random game, this means, without any bias, and I ran millions of spins on it. I deducted I'd need at least 2,000 separated trials per each numerical segment considered, being these segments going in an augmentation at a rate of 100-spin intervals. For instance, for the 1,000 spins segment, I had to process 2 million samples, and likewise for every new block of numbers, there was the need to execute as many tests as the result of the multiplication of said block by 2,000 needed trials. Let's see:

Don't care so much what the video is about.
The important thing is that you have a video wheel to practice with.

With this video you can see that there is small gaps in the beginning of spin.
At the middle of spin you get median gaps, then shows a distinct gap pattern where he place his bets.
Then at the end of the spin you see gaps that are half the wheel and more.

You can backtrack this video and learn how to estimate the ball using zero based upon this.
Just watch the video over and over again.

http://www.youtube.com/watch?v=c-_niuZOZhc&feature=player_embedded#at=155

AMK i will make a topic and explain how visual ballistic work.
How to predict the high probability area where the ball will land, before it does.

Here is two document that show that you need almost nothing to get a bias wheel.
That is why you find bias wheel in real casinos or wheels who have bias conditions in phases.

See attach files:
This is two old files, but overall they explain many things that is good to know.

I hear when i chatting with some APs that some can outguess what deflector will hit when they have a 2 pin game.
Maybe that solution comes with long experience.

I don't wast my time with that.
For me does practical solution comes to hand, like scatter overlaps of multiple drops.

Simple explanation is that if rotor moves in anti clock wise direction and ball in clock wise direction, then i i pick the last hitting deflector as my main focus pin, then that area will get donates from the others deflectors hits, high probability area.
This manifest and work with what we call the sweet speed of the optimal correlation between does conditions.

Simple explanation.

In the past you could find a wheel where one dominant deflector hit 7 times out of 10.
Then you could make your visual read when you estimate the ball and get final outcome (offset) and play that distance and catch the high probability area where the ball would land before it did.

Today we will never find a wheel where one dominant deflector hit 7 times out of 10.



Today you will at best find a 2 pin game where two dominant deflector hit more then the others.
You want that does two deflectors hit 789 times out of 10 to get a valid situation, bias.



The most common situation and the hardest playing situation is the 3 pin game.
We call that a semi tilted wheel where three vertical dominant deflector hits 8 to 9 times out of 10.



Level wheel is when all deflectors hit evenly where there is no domination.
Still i talk to some APs who claim the can get a small  edge playing a level wheel.

I have not solve this, but gathering some material about the subject, so i might solve this issue some day.

This is a metronome watch, just to show you other options.
But the mobile phone option is excellent and free.
And a mobile phone is not a device in the same sense like a metronome watch.

This metronome i use.
You can set it into any time interval with vibration.

Then have it at pocket and when you glance at wheel to estimate for a short moment, then touch your pocket and feel the vibration.
This way works when you take rotor speed and when you estimate ball using metronome (special method).

http://www.garret.ru/En_Timer.htm#Metronome

You need a cable to connect your phone with our computer to install the software.

Under construction

One way is to observe zero below a vertical deflector.
Then using a headcount ,,, like 321 321 321 and then read number below deflector.
You also might use thumper and use its time interval ,,,

One other thing is to use human reflexes to increase accuracy.
Like clucking with our tongue like a horse walking ,,, cluck cluck cluck cluck when taking rotor speed.

The crucial part is to be exact with same interval for each time you estimate.
So you get similar or same results.

Hey ,,, that's why roulette is a game of skills and not luck 

Lets say you would like much action and pick the rotor timing that is very common ,,, if we assume you only will play one rotor speed when you build your playing model ,,, then you might discover that speed is not with the best scatter patterns.
So you might discover that less action can give you more precise results in the end.

German forum with section for physics where Sache (Christian Kaisan) hangs around and Kelly.
Sache/Kaisan won serious and big using advantage play in the past and Kelly is active professional.

http://www.roulette-forum.de/

You need a web translator to read the AP forum section if you do not speak German.

Note:
Can be a good way to get hints and guide-lines reading that forum.

Kelly's blog (Advantage play).
http://wheelwatchersopinion.blogspot.se/

Laurance Scott (Advantage play).
http://www.advantageplayer.com/roulette/

Foresters roulette computers (Advantage play).
http://myrulet.com/

Masters'Roulette (Advantage play).
http://www.mastersroulette.com/

Jafco (Advantage play).
http://www.jafcoroulette.com/

That's for free and better understanding.
Just simple physics.

But is not a simple and casinos know advantage play.
The easy part is to estimate the ball and have the same distance or time-frame from A to B.

What you are up against is degree of tilt and understand how to take advantage of multiple drop points.
Scatter overlaps that just manifest during specific rotor speeds (the sweet speed) with predictable scatter patterns.

Google and you find nothing about it.
There is reason for that, either you don't know and you been lazy not doing your home work or you know, but you don't charing your hard work on a silver plate.

One guy wrote about this method and i like it so much ,,, because it use zero ,,, big green pocket ,,, beautiful ,,,
Also masters'roulette at http://www.mastersroulette.com/ mention this method, but is not using zero, same method with two different strategies.
Both have there own advantages and disadvantages.

I will describe both 

What does it mean to estimate the ball ?
Well it does not matter if the dealer spin the ball hard or sloppy or if it make 8 to 25 laps.

You catch a specific moment when ball slow down (knee point) and that moment is the same for each spin.
That means when you estimate this moment, then the balls distance and time-frame is constant, like from A to B.

Estimate the ball using zero and deceleration.

First you would only use one specific rotor speed to get constant results when you estimate the ball.
If you use different rotor speeds with the deceleration method, then the knee point will appear at different moments during the spin.
Continue to read and it will become clear.

You will observe and see the ball passing zero very fast in the beginning of the spin.
Once the ball has been over zero and for the next turnaround will be over zero again, then rotor have moved.
That distance or gap is very small in the beginning of the spin as the ball is moving very fast.

When ball slow down the distance or gap will become larger for each time the ball pass zero.
This is how you observe the deceleration of the ball.

We can describe it like this.
First the ball is fast and you will see small gaps for each turnaround the ball makes.
Then the ball will slow down and have median speed, then you will see median gaps for each turnaround the ball pass zero.
And now you will notice a distinct gap that is larger then small and median, that is the knee point, the deceleration you looking for.

So if the ball was hitting the same deflector you would have the same distance from A (that moment) to B (when ball hit deflector).
Same time-frame from A to B.

Here you would have a main focus deflector depending on degree of tilt ...

This method depend on using same rotor speed and you might getting 30 trails using a good playing model.
Good as you would track and chart degree of tilt and good scatter patterns with specific rotor speed.
You will be starring into the wheel, very obvious.
Very clear and simple method.

Second deceleration method.

With this method you use the same principal as above, but you use numbers by them self.
You pick a main focus deflector (based upon degree of tilt) and observe the gap between numbers getting larger (deceleration)
When you find your distinct gap, then you have the knee point.

This method also depends on rotor and ball turnarounds.
That is two similar ways to estimate the ball and getting the same distance from A to B.

Two deceleration methods.

 
With this video spins can you practice how to estimate the ball with the different methods i mention [smiley]aes/pizza.png[/smiley]
Thanks to Forester at myrulet ...

Roulette spins video