We all know that too much of a good thing (O2 for example) is not a good thing. Likewise for Nitrogen. Not only do individuals have different degrees of susceptibility to nitrogen and oxygen toxicity but the same individual may have significant variations in susceptibility depending upon whether they are exerting themselves physically, are suffering from illness, stressors, etc. IMO any diver can choose to dive mixed gas to reduce their potential exposure to such a toxicity. It is not "weakness" it is "prudence", and should be seen as such.
Remember the Navy decompression tables were developed for men in their twenties, in excellent physical shape, and following the rules to a T. I know when I look in the mirror, I no longer see my twenty year old, great shape, self, and I would wager that the majority of you don't see that reflection either. We now use tables that are more prudent for our recreational diver selves. Is that a weakness?
Remember the Navy decompression tables were developed for men in their twenties, in excellent physical shape, and following the rules to a T. I know when I look in the mirror, I no longer see my twenty year old, great shape, self, and I would wager that the majority of you don't see that reflection either. We now use tables that are more prudent for our recreational diver selves. Is that a weakness?