since I do a whole bunch of diving with a double hose, primary donate isn't the method I utilize for providing emergency air to another person (though it can be done). I also dive a modern BP/W....
Just move the ring to where you want it to attach your alternate air supply, or add another attachment point where you need it...
Just move the ring to where you want it to attach your alternate air supply, or add another attachment point where you need it...
