I've been certified on my Inspiration for about 3 years and I've only done about 40-50 dives on it, primarily because it scares the sh*t out of me. I've done extensive certification from fabulous instructors through CCR Trimix. I know there's a lot of back-and-forth about risk studies, but I'm just about convinced that the odds of dying on my Inspo (if dived regularly for several decades) approach one-in-ten. Please don't ask how I arrived at that number because I'm sure it's debatable and because I'd love to gather some wisdom about full face masks. Let's just say CCR is way, way, way more dangerous than recreational OC.
I'm wondering if a full face mask represents a significant jump in safety given my particular dive profile. Here's the profile -- and I very rarely stray from it. My buddies and I dive Hawaii at shallow depths almost never exceeding 200 feet and we never dive vertical real estate ('cause it's nowhere to be found where we dive.) I always dive with several buddies in buddy pairs. I usually dive with Trimix. I always carry sufficient bailout. I dive an OCB, which I would hook up to my off-board bailout in case of an FFM.
My thinking: the greatest jump in risk from recreational OC to CCR is the much-heightened risk of passing out which equals expelling the mouthpiece which equals drowning. Passing out may be from CO2 buildup, O2 toxicity or hypoxia. In any case, especially in the first two cases, if a buddy finds me passed-out before several minutes has passed -- which would happen 100% of the time in my case -- that buddy could flip me to my bailout and start ascending with me. That seems like a huge jump in safety over expelling my mouthpiece and drowning.
If I'm right, then why wouldn't everyone use a FFM?
The newest FFMs are designed to minimize the chance of CO2 buildup in the mask space. Plus, the addition of comms, and the addition of a comm on my boat, would radically reduce the practical risks of DCS. More frequently than I like to admit, my OC buddies (diving deco) run themselves out of deco gas due to poor dive discipline and someone has to make a run to the surface to call down more gas, after we've buddy breathed for a while. (Yes, I know. Sometimes these are the same dudes I'd be counting on to find my unconscious body in the scenario above.) With comms, we can call for deco air, tell the boat when we get blown off our spot, etc..
What am I missing here? What's the jump in safety, if any, in diving CCR on a FFM in my case?
Thank you for sharing.