Well peter I would not no of any of that stuff, Pretty much if I leave the house it is to go do a dive, I have everything UPS to me even my Booze (single malt scotch).
I,m from Michigan and a guy that taught me salvage diving and cave diving when I was growing up went and dove the doria almost every year. His name was charlie tulip, Boy did he have stuff from doria, and countless pictures, Charlie gave me my first underwater camera that was on the doria twice. Charlie would always call me to go under the Ice in deep water and hook up and lift, I had the ability to hook in zero vis in the muck and rapture of the deep never really bothered me. Charlie was a Deep Air pro also, Trimix was always just a hassle unless diving past 270'. When we go raise a yacht in the great lakes I got to meet a few of these guys he did the doria on. I got invited every year but at that time I would only go raise Yachts, dead divers and anything that crashed in the lakes or fell through the Ice, But I would leave to go cave diving every winter and hear about there doria dives and there pics and videos. I just hated the fact of a long ass boat ride. I have no patients once I am at a dive site, I average of about 5 mins once hooked on a wreck and I'm in and ascending down and do a quick dive for orientation and be on my way back up while they were ascending, grab fresh set of doubles and pass them on there deco and do my deco on second dive, they only liked one long deco dive.
Because of my way of deep diving they always wanted me to go but I never made it.
I went back to Michigan once for a few months to dive all the wrecks these guys found and a new one they discovered just a week before I got there, we even raised a couple of yachts for the insurance company and my time there was paid and profit to boot. They were going on probably there last doria dive and I never made it either.
Charlie told me to say hello to a sea captain here named gordon, as charlie told me about the diving here and how great it was, and he was right cause I stayed. Gordon passed before I got a chance tell him, and I herd charlie also passed a few years ago, I told my partner Back in michigan to give the camera to his kids and wife and he did.
Every video I see of doria I picture charlie and his buddy's doing there dive.