By the end of this week, we should all be able to use the dive helmets in our sleep. We'll also be prepared for every conceivable emergency situation, no matter how unlikely. One of the most important things to remember is to stay calm if something goes unexpectedly wrong. Freaking out is one of the worst things you can do underwater because you'll overuse your air supply and make less than best decisions. If you stay calm, however, it's all about remembering the training and/or following muscle memory. Team members at the control center are always monitoring us and in communication with us via the helmets, so we'll also be talking with them constantly about what things are going well, what aren't, or even what the weather's like on land.