Ice9:
I'm not saying that this actually happened. I'm just posing a hypothetical situation in order to get opinions. Personally, I tend to not want to take that express elevator, and my intent was to find out what others thought about the situation.
Right now, if I were actually in that situation, I don't know what I'd do or how I'd handle it. I have to think that although I'd choose not to take the express elevator if possible, I'd at least surface as quickly as I safely could - faster than 30 fpm I'm betting...
As far as what to do at the surface, I think that goes beyond the scope of the original post. I've never taken a rescue class, so I'm not really even remotely qualified to comment. I guess I'd try and calm them down and try to figure out if he was injured. :ne_nau:
No one wants to ride a polaris missile to the surface, but when you look at the risks associated with a fast ascent vs. leaving your buddy alone in an emergency situation, what's worse?
I mean think for a second. With all the people on SB, how many DCS hits have you heard of? How many people have died from a DCS hit?
Now think about those Accident / Incident reports where buddies become separated. How many people have died after losing their buddy?
Now think of the things you can do to reduce the risks of a fast ascent or an emergency that may result in one. You could check your buddies gas supply from time to time to keep track of things. You could use Nitrox to reduce the Nitrogen loading. You could analyze the risk associated with doing a deep dive with a complete stranger, and decide if the risks are acceptable or not. You could spend some time going over your buddies gear to familiarize yourself with how it works, or even practice an OOA situation at the beginning of the dive to build confidence. You could request that the first dive with this complete stranger be an easy / shallower dive, rather than jumping into a deep one right out of the gate. You could call the dive at any time if your buddy is following the "same ocean, same day" policy, and if you're diving with a DM, you could get them involved if your buddy is doing their own thing. Prior to the dive, you could take additional training to help you better deal with an emergency situation, and learn ways to help a panic'd diver calm down.
Now think of the things you can do if you're no longer with your buddy to help them........ Ummmm........ Yeah......
Now let's say you did take the polaris express, and wound up on the surface with your buddy. What could you do to help them? You could lift their head out of the water. You could ask them if they're ok. You could signal the boat or someone on shore for assistance. You could drop your buddies weight belt, or orally inflate their wing (if they dumped it in panic). You could tow them to the boat / shore, and get someone else to help you with the situation.
Now what about the risks of DCS associated with a fast ascent after your buddy is safe and sound. If the time on the surface is less than 5 minutes and your buddy is calm, relaxed, and squared away, you could head back down for a safety stop. Prior to this dive, if this is something you would ever consider, then you could take additional training that would help you decide when this is a safe option and when it isn't. If you feel uncomfortable for any reason in doing this, you could head to the boat / shore, and find someone with Oxygen. Prior to the dive, if you're concerned that there may not be any Oxygen available to help with this sort of situation or you're unfamiliar with the benefits of Oxygen in this type of situation, you could take a DAN class on the subject, and get your own bottle. If anything feels out of the ordinary, you can always seek medical attention.
All I'm trying to get at is that if you are with your buddy, you have options. If you leave your buddy, the options are reduced, and the risk of something bad happening increase. For me, when I look at the risks of a DCS hit vs. the risks associated with leaving my buddy alone in an emergency situation, I'll take the DCS hit every time to stay with my buddy.
DISCLAIMER: My above rant is intended for recreational dives. This changes a bit when you go deeper or if you do cave / wreck penetration dives, but the risks can still be reduced with situational awareness, experience, additional training, and working your way up to this level with people you know and trust with your life.
~ Jason