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I agree with the earlier posting about not claiming all should adhere to some set rulebook. (Just thought I would add that) It is great to see the dialog here start to kick off, so well, too. One thing I gotta throw on the table, ... those old school divers are part of an elite that will probably not be seen again. I know what they do with depth, but I have a suggestion for you folks to consider. OMS 121's, Genesis 120's and the nice cool doubles rig with side mounts are a relatively recent development, I think. Like, diving with 240 to 320 CFT worth of gas on your back alone, not to mention what is tied on the side. And, as we know, O2 toxicity is a function of pO2 exposure, that includes time and pressure, and CO2 levels, et. al. So, are you sure they were exposing themselves to the same hazardous levels that are possible today? Also, it is also well known that divers have hit 450+ on air. Just ask Brett Gilliam. He did it, and others have too. The point is NOT that it can't be done. More that the hazards are well known, particularly if one tries to get any work done down there. So, then. I still hold that folks should think seriously about diving below 200 fsw on air. ------------------------------------------------------- scot@bt*.co* Scot Anderson pp000082@in*.co* Voice: 703/761/6536 CIS:74147.2357 Fax: 703/556/9290
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