If you are going to post diving advice on Facebook, you might want to take the time to check your facts and think things all the way through. Case in point: A person I know recently responded to a thread that had nothing to do with gas sharing by saying, “Most PADI divers use that AIR2 crap.” He later justified his position by posting this:
Most dive instructors would agree that it is far harder to break bad habits than it is to never allow those habits to form in the first place. It’s why we are so adamant about students not putting masks on foreheads or leaving tanks standing upright unattended. Yet, despite this, most instructors allow students to form four of the worst possible habits just by continuing to teach “the way we’ve always done it.” Some divers manage to break these habits with time; many never do.