[PATCH] MOD of oxygen at pO2 of 1.6 is 20ft

[Linus Torvalds]

On Sun, Jul 5, 2015 at 2:55 PM, Pedro Neves <nevesdiver at gmail.com> wrote:
>> But do metric divers really prefer "21m/24m" to "20m/25m"?
>
> I sure do...
> .. but maybe that's just me...

The metric  PADI tables do something odd, and go in two-meter
increments from 10m to 22m, and then they switch to 5m increments
(well, except for that least entry, which is at 42m).

I'd guess that tech divers don't care too much about the PADI
recreational tables, but presumably a lot of divers learnt to dive
that way.

Trying to find any metric dive plans with google and failing pretty
badly. But the V-Planner FAQ seems to have examples that seem to be
more along the lines of a mixture of  "round metric numbers, except at
the shallower end".

So it looks like there's not much of a real rule. I guess 3m is as
good as anything.

             Linus