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OK, now a more serious response: I'll start with an "if I were you in this situation" response. Find a dive shop that'll service the TUSA. Or service it yourself if you're competent to do so. They are just not that complicated a device. Of the options you're talking about, I'm not thrilled...

I'm going to predict the future: You're about to get an overwhelming response of "you should go with back plate and wing." Not a bad response, but this is a biased group, as I suspect more folks here use BPW setups than in the general diving population.

Well, can't say it wasn't lost for 90 seconds though that seems odd.

This thread is nearly a year old. Odds are at this point nothing will be found. Here's the last I saw on the story: Coast Guard suspends exhaustive search for missing diver in South Florida

If that's the direction you're headed, I think the only concern is so tight it complicates movement or breathing. (The flip side is that a suit that's too loose will be cold.) What's the thickness of the suit? If it's 7 mm, tightness is likely more of a problem than on a 3 mm. But keeping in...

Sorry, it starts with S and ends with water. Great computer, and once you realize it's simple to deal with. Touch either button (on my Perdix) and it clears. But until you know that is true for all alarms, it's a little discomfiting. (Of course, this may have changed with a firmware...

I wasn't thinking of going into deco, but I think I see your point and my error. Slow tissues load SO slowly that it's not the deeper dive followed by safety stop at 30' that gets you, it's the buildup of time at shallower depths. On the deep dive, it's the fast tissues that get you.

I've never had an SPG failure. I can't even recall a leak around the spool, though I've noticed that on rental gear others were using all the time. My ancient SPG is likely off a bit, but not enough to concern me. If by transmitter failure, you mean "Seaweed is an idiot," , then yes, I've...

Yeah, the tricky part is how saturated you got when you were (hypothetically) down at 130'. With the larger pp difference at that depth, I suspect even slow tissues load faster than at 30'. Or following multiple dives. Regardless, I have no qualms starting a safety stop at 20'/6 m even after...

Thanks for the link. I tried doing a quick search on scholar.google.com, but couldn't find anything. T

I suspect there are a lot of other factors that are more likely to cause your issues rather than lack thereof. For example, a change in salinity or newer/different wetsuit.

That's correct. It's lung position, not mouth/nose position, that matters. That said, I think you'd be better off spending any extra time at depths up to 20-30' (up to 9 m or so) than at the surface. As others have noted, extending the safety stop at 15'/5 m isn't a bad idea. I routinely...

OK, now I've read the whole thread. I will assign blame, primarily to the guide/instructor. But where to start? I'm going to assume PADI (playing the odds and thinking most agencies offering AOW are likely similar). 1. You can mix students with non-students in an instructional dive per...

Wow. Oh wow. I had resolved to read through the whole thread before replying but this pisses me off. If I lose track of a student when instructing, they darn well better be getting themselves to the surface after looking for a minute. There is no "it's different with instructor-student"...

$500 for a tank 25 years ago? Maybe Belizean dollars? That seems really pricey for that era. (Sounds pricey to me today, but I'm a cheapskate. Or maybe my LDS offers better deals on tanks than many.)

I agree that this is a "wrong tool for the job" issue. If you're going to have two valves, take the second reg every time. If you don't have two regs, don't have two valves. I do acknowledge Angelo's point that you can switch a reg from one valve to the other if the valve fails. That'd be...

Several questions for you: 1. How much are you typically paying to rent? I've owned my own regs for 39 years, including one first stage and a gauge set that still work. The vast majority of my diving is cold water. Even so, when I've wanted to travel light and only planned on doing a couple...

I think there are a couple of reasons for questioning and speculating: 1. Lack of data is really the issue. We don't know WHY the experts think what they do, nor do we known the experts' credentials. And news reports often are wrong because they are written in the heat of them moment. And...

Sorry to hear this. Please extend condolences to the family.

Of course the answer is "it depends." That said, 20-30 dives is consistent with my experience. I upgraded my dry suit about 18 months ago. Keep in mind that I'm a dry suit instructor, so I kind of know a bit about them and used several. On the other hand, I was switching from a beloved...