"newly certified"
Any opinions on going with a pony bottle rather then an octopus?
I was certified last September with my girlfriend and am slowly accumulating equipment over the winter. Can't wait to get in the water. The NorthEast is cold here as you all know. Back to my question octo,air2, or pony bottle?"
Getting back to the question...
As a fellow newbie I started with the traditional Reg/Octo set-up and am quickly moving to a 7' primary with a 24" backup. However, while going with an H valve is in my near future, this configuration works quite well without the 2nd 1st stage and is a great improvement without adding significant cost or complexity.
The pony bottle is really a separate issue - tech divers will rightly tell you/us that they are not needed and should be avoided at all costs. However, they do tend to be diving with doubles or with an H valve giving them a lot more redundancy than you have with a single 1st stage. As a new diver without doubled 1st stages and a single AL80 tank, I think a strong case can still be made for a pony. However, I admit a stronger case can be made for moving to an H valve and 2nd 1st stage at which point IMHO the pendulum clearly swings toward not adding another piece of equipment. (Remember, a pony bottle means you've now got THREE 2nd stages as you would never want to not have a real backup/Octo and three is clearly asking for trouble).
From what I've seen and hear, the only "legitimate" use of a pony is on vacation in a recreational diving situation when you don't really know the gear, can't bring your own doubles and/or H valve setup etc. Though again, the ideal would be to have your own gear.
Finally a word to the wise regarding attaching a pony bottle to your setup should you go that route. There are lots of fancy items out there such as the "Pony Tamer" etc. They look great but in real life they take forever to switch from tank to tank so unless you're diving with a single tank and having it refilled each time (such as on a lot of boat dives) you'd be much better off with a system that is fast and easy to put on/take off and allows switching out tanks.
Anyway that's the thinking/learning curve I've gone through.
Paul