Don't have this anymore. But the system consisted of betting on the lay side of the exchange any match less than 2.0. Favouring sports like snooker, tennis, hockey where there is win for one or the other, no draw.
Then you do a full recovery over each losing bet. Say you bet Federer to lose at tennis at odds of 1.2 at a lay price. To win £50 you would lay £10. So you risk 20% of what you win. If that loses next time you bet £10 plus what you lost etc.
That is all there is to it. And don't do it. You will bust out sooner or later.
I agree with grert and Inquisitor66 "You will bust out sooner or later"/At some point you will encounter a run of losing bets on the spin which will take out all of your bank.
That said, who am I to deprive anyone of making up their own mind?