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>One point I haven't seen mentioned in regard to air integrated computers
>is the inability to do a simple check of whether your air is turned on
>sufficiently.

Why?

>With an analog gauge, a standard pre-dive check is to breathe off a reg
>while watching for needle movement. If the needle moves, then the tank is
>not turned on fully.

Yes.

>With a digital gauge, you cannot do this. This is the one major problem I
>find with my air integrated computer (a Suunto EON).

Of course not, there's no needle.  But, if you look at the pressure before
and after you've done your test breaths it should be quite obvious if the
pressure has dropped.

You're currently used to looking at a needle - get used to looking at
numbers.  A lot of this is what people learned with, what they're used
to, and what they're comfortable with.  Years from now, divers that
learned with computer/digital pressure gauges will feel more comfortable
with their systems.

-Carl-

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