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medical costs are higher when compared to spending a few extra bucks on a proper valve (in your case 20$ for what is probably a once in a lifetime expense? for me 23 years of diving never replaced a valve completely (usually replace axis since a "smart" technician removed the valve the wrong...

BZ200 + factory JJ CCR configuration + SS plate + 300BAR 3L Fabers - I need additional weight (4lbs). Matan.

Carbon plate with a regular harness 300Bar Faber cylinders - extra $$$$ for less rust ;) Matan.

makes sense as you literally have a BOV on your neck the problem is people with a DSV and an available second stage elsewhere i.e. tucked away on a cylinder. during a CO2 hit not that easy to select between the right cylinder and the decompression gas ^^. like you I had a CO2 hit - decided to...

that's for extras during the class - there has to be a standard. If the standard for a dive class doesn't include blue water ascent - you're in the wrong class. Matan.

if it's not that's a big no no. Matan.

no issues with QC6 when regulator is pressurized - my BOV setup is the same as yours. Matan.

What's special about it compared to simple green/etc. ? Matan.

Yes. Same as many people I had technical diving experience and 10+ years of diving before fundies. But after fundies I was so amazed by how good can one really become on the basics that it really changed the way I looked at diving. I have all sorts of "expensive" gear...

happened to me once following a T2 dive - Only when looking at the photos taken during deco later on I noticed that the reg I "usually" put on my o2 was swapped with the reg on my bottom stage. They are not the same model so actually could have noticed this pre-dive. However - it doesn't matter...

No. but looking at the graph for the deep 400' dive he presented - it seems the total deco difference was +1h for the safer algorithm :) Matan.

a lovely theory which I never cared and never will care about in any dive I'll probably do in my lifetime. and I have shifted like so many other divers from 70% of helium to nothing - I'm still here. is this theory real - yes. practical for 99.999999% of all dives - IMHO no. OR perhaps it's...

so you would bail out and gas switch using QC's during entire deco? i.e. you will complete the entire dive on your BOV? must be a really good WOB on that BOV where can I get one? Shrimp/Divesoft definitely not up to that - I would gas switch to a regulator ASAP after going to the BOV. Matan.

Same here - except not extreme exposures. So in answer to OP: If one asks himself "should I risk my lungs over + 10 minutes of deco?" the answer is obvious to me. I'm not aware of any agency not recommending air breaks beyond a certain time on high PPO2. Matan.

doesn't matter. doesn't impact any gas switch/bottle rotation related actions (never did for me). Matan.

regardless of this post (which I will not comment on), can you please explain how you're using a V-weight on GUE CCR? Matan.

To OP: 1. You asked for a bailout deco regulator - means your have a rebreather. 2. Rebreathers are expensive. 3. Not looking into anyone's pocket - but: - If you can buy a rebreather - you shouldn't be saving on a regulator. - It's the equivalent to hearing a diver saying that helium is...

I haven't seen an al80 cylinder that's 5lbs positive when empty - which brand are these? Bands + manifold + another 1st stage add weight. Same weight as single al80? no - go ahead and do a weight check it saves you guessing weights and being unsure if you're properly weighted. Empty cylinders...

In some countries (Israel summer for example) - this can get even hotter. In some countries (Israel summer same example ^^) - the water will be ~84f. 8 hours being on a boat makes sense (ropes off 07:00 -> two dives -> back at 15:00). Takes me also 2h do drive home. No major scrubber issues...

Need a little clarification - are you using ambient filters on your video lights? I'm actually interested how these work at depth - since shallow obviously it's just ambient light (real ambient - from the Sun ^^). Matan.