I am definitely not arguing against testing but I am trying to put a little reality check on the risk. Every action has risks. And inaction. For a diver to make a choice they have to know the real life risk, at least as much as possible.
We all take risks. Its part of life. And yes, we should reduce those risk as reasonably possible. Do I analyze unknown nitrox? Yes. Do I on occasion dive a tank i do not personally analyze? Yes, when I deem the risk is negligible and I know the circumstances of the fills. Do I test for CO, as of today no. But that may change if I decide the risk indicates the need.
We all take risks. Its part of life. And yes, we should reduce those risk as reasonably possible. Do I analyze unknown nitrox? Yes. Do I on occasion dive a tank i do not personally analyze? Yes, when I deem the risk is negligible and I know the circumstances of the fills. Do I test for CO, as of today no. But that may change if I decide the risk indicates the need.