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As discussed elsewhere on SB...

Tricky question, there! Could it be that some of what those folks tell you is solid, sensible advice and some of it isn't? Could it be that some of what you learn in your OW course is perfectly sensible for your first fifty dives and some of it will be modified or even discarded as you gain...

Or you could do what I did: When you buy a wrist mounted device, take your console apart keeping only the SPG which you clip to a waist D-ring. The mechanical depth gauge can actually be placed in a pocket for minimalist redundancy. As for the redundant computer, buy that whenever funds...

Well everything seems straightforward. I said somewhat earlier that if you had a dive plan laid out in advance, there was no need to abort the dive should your computer fail, you could continue based on your plan. You said that a plan could be based on simple turn pressures. It sounds like if...

I certainly never suggested that anything is inadequate. I was simply asking if a diver getting into the water without some sort of idea how deep they will go, how long they will stay there, and what implications this have for their ascent/deco is considered a dive plan. You seem to be...

I must be doing it wrong. I fully inflate it and lean back. I float on my back like I'm on a comfortable raft, even in heaving seas. Sweeeeeet...

I'm not a caver, so I don't know what the rule of thirds really is. In my OW class I remember being told it was to return when you have used 1/3 of your gas so you have 2/3 to handle yourself and your buddy. If that's what you mean, it feels incomplete to me. If gas management was my only...

I'm confused. Do you consider "I will get in the water and dive until I reach some sort of gas limit or until my computer tells me I have reached my NDL" a dive plan?

I love single tank warm water diving with my steel BP and single tank wing. prior to this setup I had a DiveRite TransPac and wing, I loved that as well but prefer the simplicity of a plate along with the fact that it takes weight off my waist.

Have you selected an instructor yet? If so, perhaps you should ask your instructor to suggest a model or tell you what features are mandatory for the style of diving you will be trained to perform.

Taking advice from a n00b like me will probably get you killed, but since you asked I second the bungee mount. I put mine on my forearm alongside my bottom timer. Super easy to read while cruising slowly with arms outstretched or folded across my chest for trim. I took the DIR road and put it on...

I am not going to quote methodology here, especially given that I don't even have 75 dives yet, but if you buy into a certain methodology and you are capable of remembering three numbers: 30 metres, 30 percent, and 30 minutes, you are smart enough to memorize a certain NDL table. In the...

That being said, Charles is usually seen on vacation doing two-tank group dives where the DM sets the dive plan and instructs him to alert the DM when he hits 1000psi and return to the boat with 700psi. Charles has never observed anybody else doing gas management on these dives, nor has he...

I apologise if I'm straying into another one of those dead-horse debates that is repeated over and over again, but... Before we get into the water, don't we already have an idea of our maximum depth and NDL for the dive? I mean, we don't just jump in with our computers and swim around until it...

I calculate rock bottom for a dive and then make sure my single tank is of such a size that with my SAC and the planned dive I will reach rock bottom before I reach the NDL limit as per UTD's Ratio Deco. I then depth average mentally and do minimum deco. I back all this up with a Suuntu...

Actually, there are two people: Anne and Brendan. Anne knows all about diving beyond PADI's "Master Diver" card thingie, she already has some extended range and deco procedures instruction, and knows she's interested in Trimix. She searches for "Trimix Instruction" and spends her time decising...

Reading George's reasons I get the impression he is arguing with the strawman that 80/20 is used to avoid buoyancy issues doing a stop at 20'. And reading "Deco for Divers," the author points out that 80/20 is an optimum mix if you buy into a certain Buhlmann model of decompression and ignore or...

The word "recreational" has several meanings depending on context. English has lots of words with more than one meaning, so I don't know why people debate the subject. "Recreational" in the context of diving sometimes means for pleasure, and also sometimes additionally means diving within set...

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One course of action might be to find a local business with some expertise in changing the battery, paying them to change it, and asking if they can tell you what's involved. If it seems daunting, you have saved yourself a lot of grief. If it seems straightforward or involves an inexpensive...