Hi T Bone , long time since we haven't discussed
I use two different regulators , a classic two stage Aqualung Legend , but also this Aqualung Mistral : this is NOT a vintage regulator BUT the only double hose regulator available on the market right now , its main advantage is having the bubble on the back and of course it also gives this "vintage" look
: I love it
here is a picture of the "new mistral" close to its ancestor the classic mistral (the one on this pic is a 1964 model)
the old mistral was a single stage regulator : a fantastic piece , very simple and rugged , the new mistral is a modern two stages regulator with all you can expect from a modern one (hi pressure and mid pressure output , compatible with octopus, BC and pressuremeter ...)
and before you ask the question YES I also dive with the old one
... this old mistral you see on pic was bought by my father and I have done my very fist dive in the sea in 1973 with it
tech note : you can dive deep with modern rebrether , but of course thoses do not use pure oxygen but Nitrox (pure oxygen dive have a limit of about 14 meters) ... I plan to do a rebrether course in the future
Cheers
JM