elan
Contributor
I think many of you missed the point and took this to another level.
Many dive operators have rules. No functioning gas indication, no diving. Real simple. An analog SPG in addition to an AI computer or wireless transmitter makes sense if you want to still be able to dive, unless you want to sit on the boat for 2 hours while everyone else dives. Quite simple.
If you don't like to dive on a boat with rules like that then don't. If you don't want to add an SPG, then don't. It just seems as though many of you like to argue just for the sake of arguing. Many of us will never, ever dive together and after seeing the attitude of some of you, I would not want to dive with you under any circumstances, nor would I ever want to even sit down and have a beer. Some people just don't like to be told what to do and are defensive that way. No one is telling you what to do. So continue on your tirade if that what makes you feel good about yourself, if that what it takes.
What I know is this:
*My transmitter failed between dives and because I had an SPG, I was allowed to continue on my boat dive under the operator's rules. If I had no SPG, then I would have missed my dive(s) and when you pay to travel to a far away place, one does not need to sit on a boat while everyone else dives. You can argue about your gas planning but that won't change the mind of the operator.
*I was on a group night dive lead by a shop from shore and one of the participants had a failure of their AI digital computer. We all had to terminate the dive. If the diver had a backup SPG, we could have continued but instead it affected my diving.
If you want to argue clutter and failure points, no problem, I see and understand your opinion, it makes sense. Clutter is a relevant term anyway, subjective.
So go ahead and plan your gas, which I guess includes all of the variables that can happen during a dive and don't have the ability to monitor your gas. No problem, or actually just your problem.
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The advantage is not having to ascend if you have a dysfunction. It may not be a big deal at Dutch Springs, but it is if you are on the beginning of a trip on a live aboard.
You can sell the transmitter on ebay buy 1 hose and 5 spgs using that money and you will be set for another 30 years.