Scott, I'm going to provide another view here. Your point regarding "due diligence" research is a good one, but I have to disagree about that being the
best lesson learned here. To be sure, there was a great deal to digest...with lots of issues contributing to a dangerous situation. In my opinion, one of the most important (if not
the most important) lesson from this adventure is that a diver
must assess that his/her gear is in functional condition before the dive begins,
regardless of whether the diver owns that gear or if it is rented from a dive shop halfway around the world. As soon as this responsibility is abdicated, the diver introduces an unacceptable level of uncertainty into the whole equation. I think that LeeAnne recognizes this as evidenced in Post #46. Good for her. I hope that even when she's at home and using her well-cared for, well-maintained dive gear that she'll still do a comprehensive pre-dive check for functionality. Maybe her pre-dive routine will change as a result of her recent experience. If it does, it can only make her a safer diver.
For all of the newbies out there, please understand that it is
your responsibility to check your gear before a dive. It is not the responsibility of the DM, your spouse, your dive instructor friend, your buddy who has 1,000+ dives, or even the captain of the dive boat. Airplane pilots don't just trust that the maintenance/repair crew has everything on the plane in good working order. Pilots go over each critical instrument in a pre-flight check
themselves. Perhaps this is the kind of accountable behavior we all should seek to emulate. Develop a solid pre-dive routine or checklist and stick to it no matter what gear you are using.
Diving is a lot of fun...but it can also be dangerous. Let's all act accordingly.
Now where's that glass of wine that Scott mentioned?