Apart from betting few numbers I'm also testing this one.
It's an old system, well known in the italian forums, and is called "Hollywood" from the name of its author, an italian gambler which lives in Holland. His systems are all very easy and playable and this was the first he shared.
So here it is: You enter the casino and look at the last number spun, let's say "21" which belongs to the 2nd Dozen.Then you start betting in continuous starting from the Dozen 2, that you bet Dozen 3, then Dozen 1, then again then Dozen 2, Dozen 3, Dozen 1, Dozen 2, etc. REGARDLESS OF WHAT DOZEN IS SPUN until you hit.
Progression involved is the violent Fibonacci: 1 - 2 - 3 - 5 - 8 - 13 - 21 - 34 - 55 - 89 - 144 - 233
However, Hollywood said he never went beyond the 11th bet of the progression (the worst scenario he met) and that the system works on the base of the law of the third. Also the point is that with Fibonacci later you hit bigger you win. More conservative progressions are possible, but he highly recommend Fibonacci sequence.
I've been testing the system for some sessions with good results.
I'd like to know what you think about this ridicolously easy approach and I'd be grateful if someone else would test it.