I would suspect that the ease of breathing of the new 2nd stages is mostly due to a more aggressive adjustable venturi.
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Another Conshelf question here - The LDS decided that my Conshelf XI would be a problem to use on dive trips because the yoke wasn't a 3000 psi yoke, so they installed a Conshelf Supreme first stage (gave me back the Conshelf XI first stage, too).
BTW, the yoke on the Conshelf XI can be replaced with the newest heavy yoke. As far as I know they are perfectly interchangeable. You can also probably sell the old yoke to some vintage equipment divers. I think that is the same long yoke that would fit the old Mistral double hose single stage regulator. I may be wrong.
I believe it'll be the SE2, however, I can still find the SE2 with 1 HP.Is there a Conshelf out there with 2 high pressure ports on the first stage?
Sorry for the wrong info, the SE2 also have one HP port but four LP port. My mistake entirely. I guess, I just bought another 1 HP, first stage. Lol.I believe it'll be the SE2, however, I can still find the SE2 with 1 HP.
Hanging them is the best way in my book. The only time they get coiled up is for the flight to go diving..
Jim