Chances to win still the same and your mind deceive you for thinking that you can easily win if you jump on other slot games. The odds to win doesn't change since slot games is provably fair and result always show up randomly.
What if that strategy is the best way for him and that's really works for him, do you think he's been foolish to share it with us? Or you think applying it in our betting world would really lead us astray?
These slot games doesn't have strategy and so if you find out something secret to making you winning, then let him stick to it, and if you can't find it convincing, then it's best to stare clear off it.