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  1. northernone

    History of 18m depth limit?

    Maybe with NDLs similar to these:
  2. northernone

    Weight Question

    That would be my ballpark guess as well. And I doubt it is far off the mark. If you get an experienced person at the shop some are good at the "guess the weighting" game if they are use to gearing up people of your build in 5mm suits. The wild card here is not all 5mm suits have the same...
  3. northernone

    Strobe repair in Cozumel?

    I'm somewhat handy, what's the issue? No official service center I am aware of.
  4. northernone

    Shore dives in Cozumel

    Nice recommendation, thanks for the map too. Mario has gear and tanks available as mentioned. Kind man. My friend has been doing some photography in that site. Click “community photos" to see them: Tikila Bar Cozumel
  5. northernone

    Why such a big step to technical diving?

    Carry a little more gas and having a little more bottom time is great and provided you don't need to do staged decompression there's not much more to it than strapping on another tank or buying a bigger tank. Everything changes when you can't safely surface directly. A decompression obligation...
  6. northernone

    Is there a valid reason for a pony bottle

    The only valid reason I know for anything in our hobby is "because I want one". That said, headfirst in a hole and the tank valve blocks with crud (scientific term for oxidation) instantly completely blocking the flow(no drip tube, do you check your rental tanks?), I would not have minded...
  7. northernone

    Tank carrying strap, pros & cons?

    It's common for a stage bottle. (one clipped on the diver as an additional tank) As per your exact question... I think for a back mount the carrying strap often gets in the way of the BCD straps and needs removed prior to use for this reason. It also seems like something that could be an...
  8. northernone

    Cozumel Night Dives

    From talking to the older divers who are still active: The old 'paradise reef' is cut in half with the cruise ship over top of it. Half in front of Casa del Mar and the other half a boat dive just south of the cruise ships. I've noticed some dive shops do drop boat divers on that easy shore...
  9. northernone

    Stand alone secondary computer use

    If you're running the loop at a ppo2 of 1.0 consistently from the surface to the bottom, yes I'd set my backup to a constant ppo2 where the high and low match your best guess so your deco obligation and oxygen exposure is estimated as accurately as possible. Cameron
  10. northernone

    Connection type?

    Ikelite Flex Mount for Quick Release Handle Or Ikelite1 It's the quick release adapter for older style black ikelite handles which share the same release system as the newer black/red striped handles. Cheers, Cameron
  11. northernone

    Cozumel Night Dives

    Reef comes alive at night! Yes, I think it's probably quite eerie and very cool compared to the same dive during the day, particularly if done without lights on a dark night. Biofluorescent critters tumbling against the reef lighting it up in a faint flicker of color and the sound of everything...
  12. northernone

    Another PONY Q!

    A lot. Here's a better quantified answer: Lung Volumes and Capacities Even some experienced divers confuse "I just exhaled" with "my lungs have no gas in them". On a deep CESA (slow swimming ascent without using scuba) practice after exhaling "all" my air prior to beginning the ascent I was...
  13. northernone

    Cozumel Night Dives

    Depends on the group. Both are popular judging by where I see the glow of dive boats offshore at dusk. I'd guess some night dive boats are for AOW students on their first ever night dive and an easy site is chosen. Others are for experienced divers who want to enjoy the wall in the darkness and...
  14. northernone

    Selling Old Gear!

    The best place for that would probably be under the classifieds section called "classifieds: regulators". Here's a link: Classifieds: Regulators Including an asking price is suggested.
  15. northernone

    Garibaldi?

    It's automatically generated based on your number of posts. If you want to change it, subscribe to a sub-forum. (joining the solo diving sub-forum will replace Garibaldi with "solo diver" so on and so forth.) Or if you become a site supporter you can also custom edit that field. If my answer...
  16. northernone

    Am I progressing too fast?

    I've noticed with some instructors and experienced divers tend to think anyone who is excited and eager to dive and improve their skills are going 'too fast'. Going too fast can kill, so I think it might a general warning that's worth considering but I wouldn't have an accurate guess if in your...
  17. northernone

    2018 stats and accomplishments

    This year I enjoyed plentiful of bottom time. Glad to be healthy enough and also to share this gift with others. My heart was delighted to have my last dive of 2018 with this loving couple too!
  18. northernone

    AOW before Tech?

    I penned a half dozen replies, can't say it better than this myself. So here's my agreement. All the best in your diving. Cameron
  19. northernone

    Another PONY Q!

    I want the most versatile gas possible in an emergency air supply. Ideally (hypothetically) normoxic trimix but commonly air. We can fix bent, but an oxtox at depth with two divers out of air would be a nasty situation. Cameron
  20. northernone

    AOW before Tech?

    Those are skills you will need in technical diving but not required certs and depending on the instructor might be nearly useless as a foundation for technical diving. Bad habits poorly taught are worse than no habits. Some training progressions require a deep cert as a prerequisite, others...
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