[quote=“bettinghause, post:1, topic:1134”]First of all lets say our DD is at 12 o’clock , dealer is spinning the ball after how many spins of the ball I should apply time ? if I know that Rotor is making about 16 pockets at 2 seconds.
How long before the spin end you know the number already ?
Thanks in advance[/quote]
With traditional VB you try to identify particular ball rotation for example 5th or 6th. (We count ball rotations from the end of spin).
So let say you learn how learn how fast is 5th ball rotation. You read number at DD at that moment.
Because the ball on tilted wheel drops at same the place (DD), you know where it will drop.
From that number you only need to calculate how much the rotor will move.
If the rotor speed is as you say 8p/s if remaining 4 ball rotations are 7 s, then your predicted number is 7 x 8=56 pockets away. 56%37= 1 rotation and 19 pockets. The ball will drop after rotor makes 1 rotation and 19 pockets. You need to know what the common ball jump is and add that as well. If it is 10, it is then 19+ 10=29 pockets from number at dd. To have it all included in prediction then the best is at the moment when you identify particular ball rotation to read number -8 pockets from DD. (- 8 is same as + 29).
Problem with such approach is that you can make a mistake instead of 5th ball rotation you can identify 5th.
VB2 is helps with it. With VB2 you can predict in 5,6,7,8 or 9th ball rotation and still read reference number.
We cay the VB2 predicts well in any ball rotation but it is still better to target particular ball rotations so the errors are smaller.
Again, you do not count ball rotations from the front but from the back of spin.
VB2 time you apply a bit earlier, let us say 10, 9 or 8 rotations before then the ball drops. If you apply it at 10th or the eighth, the VB2 will still produce same reference number.
From that number you observe on which number the ball drops. After few spins, you may find that the ball drops 12 pockets form your reference number.
If the ball jumps 10 it is in total 22.
Instead of starting reference time at DD, you had better start it 22 pockets from there, and then when you read reference number it is already final prediction where the ball may stop.
Before than you apply reference time you should check rotor speed. In addition, make adjustment if the rotor is slower or faster.