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Are you 100% sure his focus 2.0 was on the full power setting? I doubt it.

Regardless of where you want to go, do yourself a favour and take a gue Fundamentals class. The instructors are highly knowledgeable and are pretty much all technical divers. They will be able to answer any questions you may have. Take the course, open your mind and if it doesn’t suit you...

It used to be that you had to have T2 to dive a breather with gue but that was and still is for Halcyons RB80 PSCR. Since a couple years, there’s been a CCR option after T1 and 25 T1 dives. You can read the standards here...

Tech 1 and 25 T1 level dives afterwards now

Mac you said “some people can drink 20 pints and still be able to walk home”, as an analogy to how deep air affects people differently. I said “yes, but are they able to walk in a straight line if needed?”, an analogy for a performance increase soliciting a greater ability in response to a SHTF...

They might be able to walk home but are they able to walk in a perfectly straight line?

nope.

Hard to achieve balanced rig in a thick wetsuit. Purge your regs to 40 bar/ 500 psi at the end of a dive. From nothing, incrementally add lead until you can just about maintain depth a few m below the water line. This is the minimum you need to descend with everything deflated and exhaling.

Dont think that’s what PfcAj was getting at

According to Halcyon’s website, the focus 1 low setting has twice the burn time of the 2.0 low setting.

Focus 2 is a nice light but is unnecessarily bright with 80k lux at 1m and the burn time isn’t as optimal for a full day of cave diving as the focus 1. Focus 1 is still quite bright with 39k lux at 1m (even in sunny ow its useful for signaling) and the burn time is twice as long with 5hrs on...

Often people look to get a tech pass just for the sake of getting it. This results in burnout and no fun. Reminds of some 50yr olds who had done fundies in rec gear then did a tech eval 2 months later in brand new kit - they weren’t ready at all. It was a shock to see them in the water Don’t be...

All of this is because the harness shoulder straps weren’t loose enough, and the crotch strap wasn’t tight enough. When your equipment is set up properly, being in “perfect” trim is an effortless joy which there are many divers that can vouch for. Nothing wrong with being out of trim if the...

It takes a long time to master buoyancy and trim, so long in fact that open water course students are not capable of that kind of mastery . Mastery is not possible in a short timeframe, it takes years but often decades to truly “master” something. As for BSAC’s training standards... thats...

Recommend a class with a GUE instructor. It will help you out and answer all your questions.

Its kind of pointless arguing over deco. At the end of the day, there are many personal differences between everyone in many ways, and there are a million different ways to slice the deco cake. Being so exact on deciding a deco plan doesn’t really matter, what matters is following it. Sure it’s...

You could dive a steel 12l cylinder and reduce your weight belt lead, can also transfer 1kg blocks from belt to the harness with a couple pairs of triglides if you want less ditchable weight. Simple.