Anthony, you had it dead right and then regressed with the "tactile" bullshit in your last paragraph. The answer you are missing is as follows: 1) do not expose yorself in open water to a decompression obligation where you could not just keep breathing the known gas to get out ( fear of deco), 2) in a cave the bottle is not taken past its depth, 3) there is no way to identify other than looking at the depth which is painted on the bottle ( assuming you followed our gs mixing guidelines). As you said, if you can't see that, you can't see how deep you are anyway. The guy you were discussing this with is an obvious stroke, and your points were perfect. That is one way that many people get killed gas diving - breathing the wrong gas . Only the worst moron would mark regs or use other "systems" to identify gas. Try any of those assinine tricks with three guns: load one and leave two empty. Put different colored tape on them and put them in holsters on differnt sides of your body. Then take the empty ones out, hlld them to your head and pull the trigger. Should be no problem remembering which one is loaded, and if you are not sure, just look at the tape. The way I would do it is to leave the breach open, which is the equivalent of the WKPP bottle handing guidelines: with our method, which has been discussed extensively and is on our webpage WKPP.org, if you can breath , you are breathing the right gas. What is being taught out there is a real shame, but then it is being taught by people who do not really do it . -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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