Regulator Breathing Thoughts On The Oceanic Delta 4

When I first started diving I bought a scuba package online as my first equipment setup. It included a discontinued model Mares regulator (I didn't know that at the time), a buoyancy control device, and a console with dive timer, compass, and pressure gauge. I dove with that for a couple years, but couldn't find anyone who serviced the regulator. You know how some of those low end models make their way into oblivion because nobody wants to work on them, or they can't because the parts are no

One day I took my Mares in to my local dive shop for service, got to browsing the displays, and spotted the Oceanic Delta 4 regulator. My attention immediately peaked as I noticed the swivel between the hose and second stage.