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Not only do you not get to shoot them, but they'll fix it (won't give you a new one), and then you'll have the same problem again TWICE. I'm still pissed that my Suunto is a 600 dollar paperweight. I won't even sell it, because I don't want to pass the problem on to someone else. If...

Plastic will fail catastrophically without warning. Other divers might not want to dive with you if it looks like you'd rather save a dollar or two than have something sturdy as part of your rig... If you're diving DIR, there is no need for the plastic stuff. Also, if you use bolt snaps and...

It's all a matter of balance. I have a family, and I have no problem taking them somewhere where there are divers. I don't think it's very likely that a diver is going to drop a tank on my kids. On the other hand, some people are very inconsiderate. This usually causes problems for all of...

Given the choice of drowning or rebreathing the wing, I'd go for the wing. My reasoning is that a) you might not pass out until you make it to the surface and b) if you do, passing out from rebreathing the wings is probably a lot less unpleasant than drowning. Obviously it's a very last...

Air is not DIR. I would say that for very shallow dives it's ok, but anything below 60 fsw I would take a nitrox class or rec triox.

Hi Rob. This kind of teaching has pretty much been debunked. There are many many discussions on this, and it has gotten so far that even the agencies that used to require deep air before trimix don't anymore. I would say that any instructor that still teaches deep air is not someone...

I have never heard of anyone chafing. If this is an issue I would recommend following these instructions for setting up the harness: http://www.baue.org/faq/backplate_sizing_inline_images.html I have owned a bungy wing and a Halcyon. The bungy wing does drag more, and the Halcyon is...

Thank you for the information regarding hits and some of the mechanisms, I find this topic very interesting. I frequently deco on oxygen at 1.6 ppo2. I am curious about some of the less intense effects of high ppo2. You mention free radicals and hydrogen ions, which I assume do some damage...

Go half a turn past off.

I'd have to disagree somewhat. I think the 10W HID Is comparable to a 35W halogen and the 18W HID is comparable to a 50W halogen. It is true that the HID light is a different color...one person described it as "happy". Between the 18W and the 10W HID, the difference in light output is only...

The large Suunto's are nice, for a long time I used a Vyper and never had any problems nor did any of my friends. I got into serious trouble when I switched to a stinger and it decided to indicate the wrong depth. I then found out that this was a relatively common problem. I head that GI is...

Just wire. Usually 2 conductor. It doesn't need to be special, although I would use something beefy.

No computer necessary. One more vote for not using a computer at all. You don't need it. The one between your ears is much more powerful. If you decide to ignore this advice, beware of the small Suunto computers (stinger, mosquito, D3 etc.) They have a tendency to indicate the wrong...

The trasnsducer has a tendency to mess up and it will indicate the wrong depth. It happened twice to my stinger, twice to a friends stinger, once to another guys stinger whom I know, to a buddy's D3 etc. I haven't had any problems with the "big" Suunto's, nor have I heard of many (I know of...

Looks like they finally have buoyancy figures that make sense. Thanks for posting this info.

If you use the small Suunto's for bottom timers, make sure you use a backup.

I voted for the deepest box. The reason is simple. You can check out your gear in shallow water for 10 minutes then proceed to go deeper. That would be the same as doing a 10 mn checkout dive at 30 ft and then doing a deep dive. Of course I dive doubles, so I have two independent...

If anyone has a copy I'd be interested in reading it. I'd be willing to buy it, borrow it or rent it. Just PM me.

I did a little more research on the subject. It looks like the energy from a scuba tank is roughly equivalent to a 24 volt battery producing 15 amps for one hour. This would probably be enough to drive a scooter.

Yes, but that is all the energy released at once, and on the surface. You could build a setup where the air escaping from the tank valve pushes down on a scale. This would tell you how much force the tank is putting out with the tank valve open. I'm sure there is a mathematical formula as...