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Very sad news. I never met her, but from the close to 10 years on the same boards she came across as a very likeable, intelligent and positive person. My condolences.

A common plea from most scuba training agencies to Guinness World Records to disregard any scuba record claims might make some people think twice... Or failing a common plea, changing their rules to allow permanently pulling cards or status from instructors/shops taking part in depth record...

Pulmonary oxtox is essentially a function of ppO2 and time, not depth. Of course gas density might be a factor, but the bulk of decompression would still be in the shallows... If I recall correctly the biggest WKPP dives are in 29 hour range. WKPP, KUR and maybe some others might be past...

What's the problem with teaching horizontal ascents? I have had no problems at all teaching those to OW students, in cold water and dry suits even... A little bit of extra effort maybe, but that hardly qualifies as 'nightmare'. //LN

Quoting myself for an update. Didn't install the Nordic Blue rings, but instead I've been simply using the pull-latex-sleeve-over-the-ring style gloves over the Antares rings, and amazingly they work just fine, at least for the past 3 dives I've had completely dry hands. The sealing surface is...

A full O2 Al40 is not a problem for me, but if using a 7 liter (Al50ish?) I prefer them at around 130-150bar if the gas plan allows. Not a big deal though, the tank just sits a bit more comfortably. I don't generally use Al80 for shallow gas on ocean dives, the local conditions (traffic &...

This actually brought to my mind the assertions almost everywhere that not everybody can become a cave diver; just google for the phrase "cave diving is not for everyone". I think a step ahead would be for all cave/tech diving agencies to adopt this sort of preliminary screening system. I...

Thanks, I've been looking for this sort of information. Could you also list for the steel tanks which have the 'good' dimensions, ie. close to the tall 12L? Btw, I'm pretty sure al40=5,5L and al80=11L. I used lp50s on my JJ when visiting FL and they seem to be about 8L, really nice tanks. Wish...

Most of my glove leaks have been due to different ring systems not working (user error usually). Pinholes and small slices seem to concentrate around the undipped area around the wrist, and are probably caused by using too much force when donning and doffing gear (getting help is a good idea...

Similar feelings, I had the Antares glove pop off in near-freezing (2 to 0 deg C) water about a year ago, with about 15min of O2 deco left. Luckily had a habitat close by to get into to replace the glove. Didn't learn from one incidence, repeated the same thing next dive. Still got all my...

Ditto for any video evidence of halfway decent frog kick with them, let alone helicopter turn or back kick. The Youtube channel of the company does have some videos of very shoddy 'frog' kick with the fin in non-silting environment, but that's about it. I'd be happy if somebody proved me wrong...

I have yet to see or hear about a wreck diving/penetration specific course that I'd have considered worth taking. There's a bunch of stuff to learn from elsewhere, though. My advice, mostly based on experience: If you want to do wreck pen for the cool factor, don't. Cave diving is nicer and...

I've heard a lot of different interpretations about the number signals, not limited to GUE, so it seems a lot of people get these taught differently. I like the palm / back-of-hand as the main differentiator, as it's fairly clear and allows showing the signs in whatever position convenient...

It's also worth considering that for example the open water area of cenote Eden is gorgeous and worth a visit as such. //LN

All of the pictured grips are bad solutions, and go to show that the manufacturer either has no real interest in the matter or no clue. They do offer a slightly more comfortable handhold which may help marginally, but place the camera farther away from the axis of almost any wrist movements, so...

According to this article: http://c.ymcdn.com/sites/membership.uhms.org/resource/resmgr/safety_docs/titanium_hbo_fire_risk_%28hink.pdf ..."It has been reported that an oxygen partial pressure of 25 ATA (2514 kPa) was required to ignite and burn a fresh titanium surface at room temperature...

One thing a lot of people seem confused about is that they seem to equate RD with just jumping in the water and running the deco on the fly and doing lots of math underwater. You could do it, it just isn't very smart or even fun. It's much easier to run the plan on the boat, and then just dive...

Hi, I think it would be me. It was bit more than just a checkout dive, basically a checkout day each time. I'll pm you the details if interested, but in a nutshell: way back I had chance to do a few days of light cave diving with a GUE instructor in MX, while being i2c & norm tx with GUE-F tech...

Limits can be pushed by careful risk management and planning or by being a loose cannon. The difference between "let's see how deep I can go" and "what do we need to do to push the end of the line further". I've observed there's a small portion of divers who come to the sport of diving, proceed...

I wouldn't worry about fire safety, apart from maybe avoiding ignition sources right after the dive, as the gas might be absorbed to undies to some degree, and might linger for a while being heavier than air. Extremely unlikely anyway. However: you'd be carrying an open EAN50 tank way past...