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  1. kierentec

    Mod 3 readiness

    I tell my students if they can hold a 20ft/6m stop indefinitely and comfortably, they are probably ready. Everything else can be managed if you’ve got a super stable platform to work from.
  2. kierentec

    DIR- GUE Doubles Primer

    The minimum standard is one day, but depending on logistics and the diver’s experience, many primers (both doubles and drysuit) are run over two days. Since there is no prerequisite other than an open water certification, this may be the student’s first experience within the GUE system and...
  3. kierentec

    Lessons Minor Cenote Incident - Lessons to be Learned

    It absolutely amazes me that the SOP for cavern and cave guides is to guide from the front. Divers wandering off the line, accidentally joining other groups and smashing into the bottom, ceiling and formations without the guide noticing is a daily occurrence. “Follow me, you’ll probably be fine”
  4. kierentec

    How to earn a GUE Fundamentals Rec Pass

    If you have a timeframe that works well for you, I’d suggest contacting instructors to see if they can schedule something for you. Just because there isn’t a class on the schedule doesn’t mean that there isn’t an instructor available. Most of us only list classes in the calendar once we have a...
  5. kierentec

    GUE-JJ hose routing versus Fathom Tech Rig hose routing

    The Fathom config also allows you to use a different drive gas than your OC bailout. A ginnie springs dive is a great example. Ideal dil would be 21/35, but that's not a great OC bailout or SCR gas. So with the fathom config, you can drive the unit with a 21/35 stage and still have 32% on your...
  6. kierentec

    Cave Diving Instructors in Playa Del Carmen or U.S.

    Not to continue to derail this thread anymore, but unfortunately, I am leaving Mexico and heading back to FL. There's a variety of reasons, but one of the big ones is it's just becoming too sad to see the destruction here every day and it's a difficult moral struggle to continue contributing to...
  7. kierentec

    Fathom w/o a stand

    Yes, it’s always fun to poke at Kel a bit ;)
  8. kierentec

    Fathom w/o a stand

    I’d blame your instructor 🤣🤣🤣
  9. kierentec

    Fathom w/o a stand

    Interesting, every unit I’ve dove the back mounted 50s on (JJ, Defender/X-CCR, Fathom) all trim out pretty much just like a set of 104s. A bit head heavy. And that’s with the valves as low as possible.
  10. kierentec

    Fathom w/o a stand

    Sorry, best I have at the moment, but I think you can get a pretty good idea on where it all sits.
  11. kierentec

    Fathom w/o a stand

    I mount the 50s as low as possible while still being able to reach the valves. I keep the top of the shoulder of the tank just about in line with the top of the canister. This helps a lot with trim/balance as well as leaving more room under the can for the O2 reg/valve. I’ll dig around a bit for...
  12. kierentec

    Sidewinder 2.0 spotted at BOOT

    If they are using that single off board cylinder as their only diluent supply, they effectively aren’t carrying bailout, just one big Dil bottle.
  13. kierentec

    Preparing for fundamentals / intro to tech

    well, we agree on something. But even so, yes, absolutely, lots of technical, ccr, and cave instructors turn students down all the time. Almost all of my friends are dive professionals and it’s been my life for over 15 years. No question, students get turned down.
  14. kierentec

    Preparing for fundamentals / intro to tech

    Entry level class like fundamentals? not often. But as it has been said, higher level classes all the time. I turn down a couple a month at least. I'm sure Tracy has turned down a few, I know for a fact @kensuf turns students away until they have a reasonable amount of experience. You can argue...
  15. kierentec

    Preparing for fundamentals / intro to tech

    Every reputable instructor I know turns students down regularly. That's a topic for another thread, maybe. Let's keep this one on topic as it's important not only for the OP or for anyone with the same questions.
  16. kierentec

    Preparing for fundamentals / intro to tech

    That’s a bold statement. Most ethical businesses will turn away customers if they don’t need/aren’t ready for a product or service. I turn down students all the time, mostly CCR or higher level tech or cave training if they aren’t ready for it. In this context, we generally don’t want students...
  17. kierentec

    Preparing for fundamentals / intro to tech

    I could not agree more, and this is the foundation for GUE instruction.
  18. kierentec

    Preparing for fundamentals / intro to tech

    If you decide on the GUE path, the best advice I can give about preparing for fundamentals is to dive and have fun, read the materials and watch the skills videos on GUE.tv. Don't worry about practicing the skills, that's what the class is for. You'll have plenty of opportunities for land drills...
  19. kierentec

    Mike goes through the new KISS Go

    About the same as a set of 85s on OC.
  20. kierentec

    Blindfold source

    Good on you for wanting to practice low vis drills, it’s something that typically isn’t practiced after training concludes. However, please don’t do it in the cave :) zero vis drills in class are done with a high level of attention and control by the instructor, and you can put yourselves at...
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