Although i wanted to know one thing from you. You have analyzed jafcos system well, and you mentioned it in this discussion that it requires lots of understanding and skill by a player.
Jafcos system requires from player to be capable to estimate ball speed.
It is hardest to do, if it is easy people wouldn’t try different methods to help them to identify particular ball revolution during the spin. It is hard because I can’t do it (with reasonable accuracy).
Other way the the rotor control is similar with all approaches.
Of course Jafcos cards wouldn’t work on the other wheels, it is based on only material of the ball therefore every user will have to modify cards. After understanding it shouldn’t be hard. If he wants to make cards my suggestion still is he should make them based on remaining time from particular ball revolution.
The best would be to not use them at all. With vibe he is using constant time, when rotor is observed in particular time by noticing the difference in pockets that rotor moves from spin to spin we can know how much rotor movement will deviate to the end use simple multiplication factor.
For example rotor in 2 sec made 4 pockets more. It means rotor is moving 1 pockets per sec. extra. If remaining time from targeted ball revolution is 10 sec, all we need to do is multiply rotor change (2 pockets) by 5. it is 10 pockets. Since rotor is traveling one pocket per sec faster and it will travel like that for remaining 10 sec. of course until the end of sin it will make extra 10 pockets if compared to previous spin. We adjust for it by shifting our observation point by 10 pockets in ball direction and read reference number form there.
VB2 doesn’t need to identify particular ball revolution. So player’s judgment is eliminated. It can predict equally lets say 5,6,7,8… revolutions before then the ball drops.
It is great isn’t it. But to gain something we lose something.
VB2 doesn’t like much rotor changes and fast rotor.
For example if rotor made 4 pockets more in 2 sec, if our prediction is different by 3 sec in time during the spin, regardless us make rotor adjustment we still can be wrong by 2pockets/s rotor x 3 sec = 6 pockets.
With some practice I believe ordinary person (as I am) can estimate ball speed within 3 sec during the spin (about 400 ms difference in ball speed) . To be right with estimating right ball revolution you really need skill to detect ball speed with better then 100ms difference.
Additional problem with VB2 is if we do not use electronics timer.
No matter how we count for reference time it may deviate. Also after longer play it may change, so we need to have good observation what is going on the wheel based on prediction and positions where the ball hits rotor.
Also you have mentioned that your VB2 should cover almost all wheels ( leveled,tilted,biased).
That is not the truth. Only tilted wheel, with slower rotor, 3.5 sec and slower per rotation is preferred.
Since you are an expert in this, i would like to know whether you tested it on various wheels, with variable rotor speeds? What are your experiences with it?
The most important thing that other people are also looking here is that do u completely rely on VB2 when you yourself play with real money, or you do a mix match of different VB's as kelly does? Since you say that cards in jefco's system is a good thing to start with for the newbies, what is a particular thing in your system that new people like me should look for to start up with, if we want to really master VB2.
I tested VB2 more then you can imagine. I play it all the time and I do not practice any other VB…
It is never easy. VB can never be accurate as good RC. With RC is hard in most of situations then imagine VB.
If the wheel is 100 with hits on DD, if the ball jumps are small then yes.
But what you find in reality is slight tilt, it also changes, wider ball jumps that take at least 50 % of your advantage. No perfect predictions, combined with all of that requires you to be smart alert with good noticing skill to understand what is going on the table.
On top of that you fight evil which these days are very much aware of advantage players and people with late bets, they will distract you when you are winning.
I do not like to write much about wins, but lets say from start of 2010 I used VB2 few times and made nice wins. Few nights ago I have had disaster, whatever could go wrong it went wrong. I made a loss it is big loss but still small if compared to recent winnings.
It is something that we need to accept.
You may ask how I can lose?
It is simple.
Wheel wasn’t so much tilted, it was also changing, many spinners, I still have had many spins predicted ball drop point well.
2 times I missed 28 I did not have time to cover it, 28 is far on the table. Around 28 are numbers 7 and 12 I have had 4 units. Same happened with 35 two times and 4 other times something similar. To many times missed by one or 2 pockets. So many missed chances and only 2 are needed to not lose. Also chips I was playing before spin did not give any return. Sometimes during the play I left the table, on return I start playing but it took me few spins to understand that something has happened on the wheel. The game was going up and down due to explained, I couldn’t progress, mostly losing then catching up. The last dealer told me sir no man can track my spins (he was smartly changing rotor speed).
Then come my unprofessional part. Be or not to be. Increase bets play few spins and go home.
On the way out manager stopped me and suggest me that I should register with them, something as, with amounts you play you can get many reward points. LOL sure.
Lose is not always lose, it is part of the game to stay in the game. This time it was only double then what I would tolerate.
This story is written with good will for people who think that VB advantage play is a miracle, please do not misinterpret it. 
I wish I can do it.