Fallacious at best
The author inexplicably overlooks an irrefutable fact - namely, that each and every bet on a roulette wheel has a negative expectation. And that no formulation of negative expectation wagers will attain a positive result - period. And probably the height of fatuity is the authors adice to his readership that his system is best played against an double-zero American wheel, which has a house percentage in excess of 5%, rather that a single-zero European wheel, which has a house percentage of a little over 2%!