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>> looking for pro and con of gages on pony bottles. also consider ideal gage
>> hose length.
>
>Depends on what the pony is for. If it's planned gas, then it probably 
>should have a gauge.  If it's for bailout only, then it will either be 
>enough, or it won't be enough, but a gauge won't help you much.  If you 
>go without a gauge, you need to make damn sure the thing is full at the 
>start of the dive, and that you would notic any leakage out of the 
>cylinder during the dive.
>
>Aloha,
>Rich

This is philosophy again...and diver preferences, no rights or wrongs.  I
use a pony mainly for a bailout, when I carried the pony on back of my twins
I couldn't see if it was leaking or had some other problem therefore I used
a gage and checked it along with the mains.  Actually that's why I started
carrying the pony up front where I can see it...and the gage.  When I'm
doing deep wreck penetration in particular, I want to know the status of
everything at all times. I want to know I have a valid bailout if necessary.
It seems a small cost for peace of mind.
By the way, I also prefer a closed isolation valve with a gage on each.
Simply my conservative preferences.  

Bill

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