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  1. Griffo

    Mares Genius vs Perdix AI for rec dives (within NDL) only

    Rec Mode Manual https://www.shearwater.com/manuals/Rec-Nitrox-Mode-Perdix.pdf Perdix Manual (tech mode) https://www.shearwater.com/wp-content/uploads/2019/01/Perdix-Operating-Instructions-Manual.pdf Perdix AI Supplicant...
  2. Griffo

    Mares Genius vs Perdix AI for rec dives (within NDL) only

    There's two different manuals, one for tech mode, one for rec mode.
  3. Griffo

    Mares Genius vs Perdix AI for rec dives (within NDL) only

    So i'll copy my comment from YT to this thread. My wife and I both had the Icon which was the previous version of the Genius, I now have a Perdix and we're considering what to get her to replace her recently deceased ICON.
  4. Griffo

    Shearwater first dive @ 250.7ft (error?)

    Every DC i've owned has had a deep "test" dive as dive #1.
  5. Griffo

    GUE Fundamental course

    The cinch is a great solution for rental BP/W setups.
  6. Griffo

    Necessity of a back up computer/watch for NDL diving

    Back to the original topic.. I don't when single tank rec diving. My brain is my backup computer and my buddy is my depth gauge. Maybe if I could find a cheap and basic ZHL16C computer i'd add it as secondary, but it's not a priority atm.
  7. Griffo

    Necessity of a back up computer/watch for NDL diving

    The transmitter simply broadcasts. The computer decides which transmitters it listens to. Think of it like a radio broadcast and a radio receiver.
  8. Griffo

    Self Reliant/Solo pre-requisites vs DiveMaster pre-requisites

    Can you really go from zero to certified DM in only 20 dives? I assume the low entry point is due to the nature of a lot of the DM certs done in the diving hotspots - i.e back-packers rocking up and wanting zero to hero courses. They need to keep feeding the money machine, and if the barrier...
  9. Griffo

    Master Scuba Diver Course

    While I agree broadly with what you are saying, I do have understanding as to why people chase certain cards. Where I used to live - there was two main boat charter providers. And if you wanted to do a dive with them, you had to have the appropriate card. Want to do a night dive? Had to have the...
  10. Griffo

    GUE Fundamental course

    But there is.. either you have a balanced rig / enough ditch-able weight that you can swim up. If not, then dive dry.
  11. Griffo

    ICON HD Net Ready Malfunctioning (depth)

    When my Icon HD charger exploded, and they didn't seem to care, I almost gave up on them. Even thought I could show it was a manufacturing fault, they merely wrote it off as a "one off". Didn't even offer me anything other than a replacement charger. The battery replacement pack costs like...
  12. Griffo

    Hydro-dip Backplate

    What if you just changed out the webbing? We have coloured webbing on all our rigs so it's obvious who's is who's. It'll cost you $20. Too late now, but Halcyon and Oxycheq at least also make lots of different coloured wings.
  13. Griffo

    GUE Fundamental course

    Sorry you've lost me. I've clarified in my post that I was talking about body weight, not rig weight - was that what you were referring to?
  14. Griffo

    GUE Fundamental course

    That's my understanding too. Admittedly it's from an archived GI3 article however..
  15. Griffo

    Dual Bladder Wings - A Good Choice for Redundancy?

    That's my understanding too. Admittedly it's from an archived GI3 article however..
  16. Griffo

    GUE Fundamental course

    There's a study out there where they tested 100 men of various shapes and sizes. Basically it determined that everybody is positively buoyant with a full set of lungs, 70% or so with empty lungs. That would indicate to me that adding a few kg's of body weight shouldn't change your weighting...
  17. Griffo

    Hi from Australia. Opening a new dive centre advice.

    You might want to join the various buy/sell scuba gear groups. For instance right now theres a company selling off a stack of commercial diving gear including Nuvair complete nitros systems for a fraction of their new prices. Someone's selling a bunch of G sized cylinders, and you can always...
  18. Griffo

    Light and stiff fins for warm water diving

    Hollis F2. Light, short so they fit easily in a suitcase, stiff as so all kicks can be completed easily.
  19. Griffo

    ICON HD Net Ready Malfunctioning (depth)

    Sounds like the pressure sensor is dead. I think you'll need to send it to Mares for a repair.
  20. Griffo

    Price competitive scuba instructor in PDC/Coz

    My 2c. $650 with a great instructor will save you thousands over your diving career vs saving $200 on the initial course.
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