Now the mouthpiece breaking - I've had them come off or tear. It's a PITA, but nothing that a remotely experience diver cannot, or should be able to, handle. It's ok with the necklace - I have had some of them - the homemade ones made out of bungy cord and now a nice blue rubbery manufactured one - like a blue regulator sphincter. I like that and I used to use it until I rerigged and went back to one hose. Maybe I'll even go back to 2 hoses. Hard to tell. I guess on commercial dive boats, some of them might even require two regs. Maybe even a snorkel. I've been diving solo off my own boat for so many years now that I might have gotten a little jaded.Hmm. What happens if your primary has a problem, like say the mouthpiece breaks or it gets separated from you? I find it very nice having my second reg tucked under my chin with a necklace, just in case. But having no second reg, I mean, sure, that's the way everybody used to dive but it seems like redundancy is always nice, even if you are only diving one tank and one first stage.
And now for the next question...Dr. Tracy, now how many times have you done the arm sweep for lost regulator recovery??? You're a DM, so I'm guessing a whole bunch. If you're rusty or deficient on this skill, well maybe we should have you unpack some impacted geezer butts for a few days, maybe to reinforce a basic dive skill as well as make for some really relieved old people.
All this said, my 7' hose is still in the eBay bin if I ever get around to unloading it along with a whole lot of other stuff. I just cleaned out my house in CT, and coming down to FL, I've been looking at all this STUFF down here that could go out the door. My wife said that I should do a wholesale purge down here. I probably should not have said, "Well, I'm going to miss you sweetie..."