SkimFisher
Contributor
senseiern,
If you follow SB for a while you can almost predict what certain regulars are going to post, and why.
This forum has several certified cave divers, many of whom practice DIR/GUE diving. These schools believe in absolute standardization - you will never find them agreeing with anything which is not DIR/GUE. Since pony bottles are anti-DIR and anti-GUE, responses from them will be negative. You will also see than many of them are unable to conceive of any situation where DIR/GUE doesn't have all the answers. DIR and GUE are like the Marines - they leave no one behind. If you are one of them, they are the best dive buddies you could hope for - they follow the rules, they get things done, they know what to do and where to be, and they don't panic. Diving with a DIR/GUE buddy is probably the best safety insurance you could have.
On the other hand, I am neither DUI nor GUE. I travel to distant dive sites when I squeeze in a few extra personal days to dive when I work. I end up with insta-buddies who are not DIR/GUE. Many of them are jokers, drinking between dives, and I can't trust my life to them. In such cases, I believe that a pony bottle is entirely justified because, unless I am a mind-reader, I might unknowingly end up diving solo.
Summary: I believe that diving an octo and a pony is a reasonable thing to do, especially if your dive buddies might not be reliable. Also, take a look at who is posting and how they were trained - this will likely explain why they think what they think.
While it may be true for some, it's not true for all. Pony's encourage less conservative divers to push limits. They offer a false sense of security. They allow "fly-by-the-seat-of-your-pants" gas management. If you want to use a pony, fine. But you should first become proficient diving without one. Otherwise, what are you learning? Perhaps it's not that I don't like pony's, it's just that I don't trust that a diver knows how to dive and plan without one (or with one, for that matter). Why is that? Because of the hundreds of threads with new divers rushing out to buy a pony in order to "feel safer". Well, I'm glad that you feel safer - I sure don't.
If new divers would give themselves a chance to learn how to dive, they would find that they really don't need a pony.