^
Haha you are very correct in pointing out that the mathematical expectation cannot be changed by Fenshui.
In my opinion, the most correct solution that will benefit the gambler is the
study of game theory, mathematical expectation and probability theory. This will really help you to understand what are the chances of winning in this or that game.
Plus just have COMMON SENSE. In a time line long enough, if a player keeps playing, he/she can never win against the house which has a mathematical edge vs. him/her. He/she can position himself geographically in accordance to "Fengshui", still it cannot break the laws of mathematics for the player. There are no miracles, and there are no accidents in the physical universe.