Regulators

[FreediveWI]

There is still a difference in work of breathing and the Posiden still has a an upstream valve- which means it shuts down your air supply in an emergancy and it also needs a special, read expensive, hose for the regualtor to work. Because of the upstream valve, and special hose, it would not be a DIR candidate.

A really good regulator, that doesn't cost a ton of money, is the Diverite regulator. It has a very standardized parts kit, can be ripped apart underwater, uses all standardized hoses and has been used to some pretty deep depths- check out the Tanya Streeter thread.

In the rest of the article that you sited he went on to compalin about the Posdien Jetstreams for the breathing- the same ones that I had spit ice down my throat and others have had freeze solid on them. If your comfortable with this new one, great. But one of the orginal question was would it be adaptable to DIR and the answer appears to be no.

The magazine is interesting in some of the other gear reviews, they even do a DIR and a GUE review in one issue. THey put all of the regulators to the test on the breathing machine to get an objective number- where the Apkes reglators still kick butt , and then they put them to a wet test by a panel of divers. They do the same thing with drysuits, fins, ect.

Jon