Kevrumbo
Banned
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Again, it wasn't a low tolerance or "weakness" for narcosis per se --Just a prudent choice in hindsight if she would have decided to use Recreation Trimix 25/25 as an easier breathing gas to mitigate Exertion CO2 Retention in a physically challenging environment (e.g. strong currents); as well as a providing a better recovery/contingency safety margin (a deeper MOD & CO2 narcosis moderation with the 25/25 Trimix than with Nitrox32), should she suffer another episode of Vertigo during a dive. She would only be "tasked" with overcoming the vertigo and staying with her buddy (as difficult as that turned out to be). . .I'd like to hear people's thoughts on this but *not* tying back to TSandM as she was not unique in her approach of when to use helium.
DD's claim is that reluctance to dive to depths of greater than 30m/100ft without helium indicates unusually low tolerance for narcosis and therefore represents a weakness in a diver.
I'd like to know people's thoughts on the use of helium to mitigate the effects of narcosis and whether or not this is a "weakness" in a diver. I'd also like to know what alternative would be suggested.
IMHO, the motivation & rationale behind this was implied here in this prior incident, in her own words:
http://www.scubaboard.com/forums/ne...-learned/318124-vertigo-deco.html#post4948568
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