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  1. doctormike

    JJCCR and wetsuit diving

    RIght, but that's clearly not a MOD 1 configuration! And of course, I don't mean to imply that everyone has the same weighting characteristics. You use what works. I was just saying that the stock JJ design is clearly 3L steel tanks. Maybe that's just best for Denmark and New Jersey, but I...
  2. doctormike

    JJCCR and wetsuit diving

    You mean for buoyancy issues? 100% of my dives (since Dutch Springs closed), and I would say the vast majority of all non-cave rebreather dives, are in salt water, so I don't think that's why they would have had you use Aluminum tanks. If anything, you need more negative buoyancy in salt...
  3. doctormike

    JJCCR and wetsuit diving

    JJ (like most CCR manufacturers, and as was mentioned upthread) recommends that you start with the stock configuration and then make minor changes slowly if you really feel that it doesn't fit your personal body metrics, etc... And I don't mean to imply that just because I never had the...
  4. doctormike

    JJCCR and wetsuit diving

    I have been diving my JJ for about 8 years. Dry suit at home with heavy fins (with tube weights and two backplates), 3 mm wetsuit in Bonaire with light travel fins. While I had buoyancy issues when I started (like most new CCR divers), I never had trim issues. So this is an interesting...
  5. doctormike

    Info Don't use AI (like ChatGPT) for planning a dive

    Good point, and thanks for watching my talk! There was clearly an enormous amount of ground to cover on even the smallest of side points, and each one of these generates huge controversies on it's own. I think that I tried to address that in this slide when I talked about good faith, and later...
  6. doctormike

    Info Don't use AI (like ChatGPT) for planning a dive

    Now if you want to hear me go on about a SAFER use of AI in diving, you can watch my talk from last month at the Beneath the Sea conference: Artificial Intelligence in Underwater Photography
  7. doctormike

    Info Don't use AI (like ChatGPT) for planning a dive

    Here's a better use of ChatGPT in diving: Me: Write a paragraph about how you plan a technical rebreather dive in the style of Hunter S. Thompson. ChatGPT: In the shadowy depths of the ocean, planning a technical rebreather dive isn't for the faint-hearted or the half-baked amateurs...
  8. doctormike

    Worth upgrading my GoPro 7 Black to a current model GoPro 12?

    I ended up getting a 12, it was great! I also used it on a ski vacation after this one, and the new stop motion features made for some very cool lift footage...
  9. doctormike

    Ear trauma

    It's an extremely common way of removing earwax, primarily done by general physicians or ER docs who typically don't have the equipment or training to remove it under direct vision. Many people have this done on a regular basis because they build up obstructing earwax and removing it addresses...
  10. doctormike

    Ear trauma

    Yeah, there is a lot that we don't really know about internal ear sensations - for example, nobody really understands what tinnitus is. I don't doubt your symptoms, and the fact that they happened immediately after ear irrigation. I'm just saying that I don't know how to make that link between...
  11. doctormike

    Ear trauma

    Sorry, I really can't tell you much more without seeing you, and even then it's unlikely that I would find anything to "fix". Not much is known about tinnitus - the cause or the treatment. Did you see anyone else after the last audiogram?
  12. doctormike

    Ear Doctor with specialty in scuba-related injury in NY/NJ

    You can also message me through my website: https://kidsent.com/
  13. doctormike

    Ear Doctor with specialty in scuba-related injury in NY/NJ

    I'm a pediatric ENT doc, but I do see a number of divers. Happy to take a look. If there is something major that requires surgery (like a perilymph fistula) I would probably send you to a buddy in adult otology. DM me if you like. I am out of town this week, but happy to chat.
  14. doctormike

    Single tank adapter in Punta Cana

    Hey, I'm in Punta Cana, DR. I forgot a single tank adapter. Anyone have any idea where I might find one? Looking for dive shops but mostly finding places that run tours, etc... Thansk!
  15. doctormike

    What do you do when the anchor line breaks free?

    Dunno. At least when this happened to me (in the OP), I let out enough line so there was enough scope, and sat on the bag on the surface, making myself buoyant after finishing deco.
  16. doctormike

    What do you do when the anchor line breaks free?

    I would think - from the captains point of view, and assuming that you aren't doing a drift dive - that the best place for all of your divers to be would be on the surface, tethered to the wreck. If there's a lot of current, wouldn't it be better not to have to go chase divers?
  17. doctormike

    Ear trauma

    Sorry, just seeing this! No, those are normal values. The thresholds are how loud sound has to be for you to hear it (in decibels), so the bigger the number, the worse the hearing. The "air-bone gap" is the difference between the air line and the bone line. Normally they are the same or...
  18. doctormike

    Eustachian tube balloon dilation procedure

    I can ask a buddy...
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