WHAT DOES HOW TO WIN AT ROULETTE SYSTEM BOOK MEAN?

On monday, i wasted An additional 2 hours on this one. That is receiving really stupid. Even in a grindy jprg, this is just a lot of grind :D This is most likely the only thing since's halting my from acquiring my previous accomplishment, And that i can't seem to nail it.Just like the Reverse Martingale strategy, the Paroli system sees players doub