WaterDawg:
But Andy, what do you mean by "student" someone in class or someone like you and I who are still learning?
basically, i think of anyone who is not full cave as a student
WaterDawg:
If you mean that for folks like us and Soggy and notabob "the dangers of diving doubles outweigh the dangers of diving a single." I disagree (for the reasons already posted by others).
well... let me say first... the "dangers" here are infinitesimal. i think they are
blown out of proportion.
let's say that there's a .001 percent chance of a single tank failure. ok, i believe
that there is a .002 chance of misusing the supply of air in a tank, getting into
a situation where you are in trouble, and getting into a dicey situation.
i think misuse of the doubles is a more realistic danger. thus, yes, statistically,
i believe we would all be safer diving singles as students.
BUT
you can't really grow and dive up to full cave with just singles, so i see a good
compromise to allow students to dive doubles since the danger is so slim anyway.
but i don't agree with suggesting that diving a single is so dangerous that it should
not be permitted. in fact, i believe that diving a single is (marginally) safer than
diving doubles.
both dangers are, to me, off the realistic scale. i know you and i are not going to
screw up with our air calculations. i also know that the chances of a single tank
blowing are probalby a million to one (i don't know the exact figures).