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Please consider renaming the "Tips & Techniques" subforum of Underwater Photography to "Photography Tips & Techniques" or similar. It's not uncommon that the photography context is missed by posters when responding to questions.

Does anyone know how the Fathom (5 lb scrubber) trims out with just a pair of inverted [ETA: valve down] 3L cylinders onboard? I normally use LP50s, but I'd rather not burn the TMx that's currently in them doing a series of NDL dives to 30 ft.

I had the distinct pleasure of meeting Woody Jasper at the NSS-CDS conference this past May. It was so nice to put a face with the name and hear some of his tales as well as those from other "old timers" at a roundtable discussion. I just ran across this YouTube video in which Woody recollects...

I'm having issues with bumping the O2 reg/valve on a Fathom Mk3 with LP50s when on land. When tipped back, the reg/valve makes contact with the bench which obviously isn't good. I've taken to adding/removing the O2 bottle (and attaching/removing the O2 regulator) while absolutely vertical (or...

I recently went to Tulum and met up with Third Dimension Diving for a MOD1-level certification on a backmount Fathom unit. There aren't many reviews of 3D here on Scubaboard, so I wanted to offer my thoughts on the experience. First of all, the travel: the hardest part of getting there was the...

I'm coming into town for the NSS-CDS conference and have a bit of time for some cave diving on Thur May 25 (all day), Sun 28 (afternoon), and Mon 29 (all day). I'd love to meet up with anyone who is available. I'm certified to Stage Cave and will be diving back mounted LP85s. Happy to do...

I'm considering venturing into the CCR realm at some point. Curiosity finally got the better of me, so I decided to solicit experienced opinions on something that's been bugging me for a while about the two current O2ptima configurations. When the CM version is cheaper, seems more stable on a...

I recently had a look at a friend's Suunto D5 user manual and was very surprised to see this statement: NOTE: It is always recommended to keep close to the decompression ceiling when ascending. In fact, the depth -- labeled "Stop" on the main screen -- seems to be identically the ceiling value...

Shearwater Perdix AI (computer only) for sale. ZERO scratches on the screen, slight scratches on the bezel. Used for 47 "dives", many of which were short descents during training classes. No corrosion in the battery compartment (alkaline battery included to get you started). Includes original...

The section about Gas Matching in the PADI Tec Deep training states one should use the larger gas volume to control the reserve amount. (In the text they also assume the diver with higher SAC rate uses the larger tank, a point I'll return to at the end.) Specifically, it states: Take the...

I have the 10 kg XR single tank wing which ripped at the seam when fully inflated. Is the cover available for replacement separately?

For those who use air in the drysuit for warmth (i.e., wing for buoyancy), it's apparent from other threads that most run the shoulder dump open (or close to open) and leave it alone. This works well for me, but I need to do a colder dive soon. I think I will have to close the valve a bit for...

Disregard!

Lived many years in Hawaii (Maui), and I had a friend with a boat and a compressor -- makes for a great diving buddy! Living in Colorado, I've become a "vacation diver", but I'm always interested in learning more.