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At 11:40 PM 9/14/95, Jeff Kell wrote: >If you want to dive to 190', by traditional rules you do >that on air or hypobaric EANx if you follow the training agencies; both >are dangerous (high EAD and/or high ppO2). From George's standpoint you >should be using mix -- a commodity not available to Joe Diver without >getting trained in the previous skills. > >George's point is why take the risk when there are safer alternatives to >your choice of bottom mix. The agency's point is you can't have mix >until you have done these risky dives. If the purpose of training is to >teach safety, I tend to side with George; but similarly the only gas >available to the student at that point is air or hypobaric EANx. With regard to depth vs gas, in general I agree with George. I see little reason to do something "risky" when there is a proven better solution reasonably available. But let me pose another aspect. I think that it will be conceeded that operationally, mix is more complex than simple stages and that stages are more complex than simple backmounted gas. Therefore, is there not some depth for which the simplification of the setup offsets the mental imparement of the (PPN2+PPO2)? At 9:52 PM 9/14/95, Richard Pyle wrote: >There are situations where people who work in teams achieve synergistic >benefit from all doing things in exactly the same way (for obvious >reasons). I agree that uniformity of team procedure is of great value. The only problem occurs when an individual diver wishes to dive with another team. ---- Richard Wackerbarth rkw@da*.ne*
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