Just saw this article pop up in my newsfeed: New Tank Lets Scuba Divers Ditch Their BCD. I am a rusty AOW resort diver with roughly 75 dives, so a newb to most on this forum. I am curious what the experienced and/or tech divers think about this 'hydrotank' approach. My first reaction was, no freakin' way am I diving with this single point of failure. BUT. I'd like to hear opinions from the more experienced members here ...