Quote:
| Originally Posted by [b Quote[/b] ]Why would it need to be routed behind my neck? |
Because it's a twinset. It's there for redundancy. That means you have to be able to breathe off BOTH cylinders. You have to configure your DVs so you can breathe off both of them.
A single + octopus rig has two DVs. One is yours, the other is for your buddy if something goes wrong.
On a twinset, you have two DVs. One is yours, the other IS ALSO YOURS if something goes wrong. If you can't breathe off your backup DV, you might just as well use a single 15 instead. Less to go wrong, and its cheaper too!
That's why the long hose is so popular - you can have your backup under your chin where it's dead convienient for YOU, your primary is in your mouth, dead convenient for YOU, and yet you still have a DV that's convenient for your buddy without having to have more than two DVs