Now I understand why George gets the way he does, he has to explain it over and over and over.
For the sake of confusion let's just call it DIR, it's much easier to type than "The Hogarthian Style of Diving", from which the company Halcyon was born. To let divers have access to gear that suited this style of diving. Since none of the manufacturers would, "Necessity is the Mother if Invention".
As for the 7' hose, you can use a 5'hose on single tank diving. The purpose is not for caves but to be able to extend your primary 1st stage at full arms length to your buddy during an OOA situation and he/she is at a distance of 1 breath. Stretch your arm out and see what I mean. You can't do that with a "normal setup" And during a crisis 6" to a foot is a lot of difference.
As was mentioned in an earlier post, DIR is nothing more than what we were taught in the begining during ou OW class.
To be streamlined, no danglies, knowing where your buddy's releases, weights and octo is, plus the others. Like you said if you perform a buddy check on the surface before diving you will know that. Question..does it automatically be come instinct to you, I think not. If you are DIR it is, you don't have to stop and think during a crisis.
Look at today's typical jacket BC just how streamlined are they, you might as well have pillows strapped around you.
The Halcyon single tank wings lie flat against your body when not inflated and when inflated form a hydrodynamic shape. I used a Ranger for years until I started DIR, now I find it just cumbersome to wear. And to bring this up again,
just how many D-rings do you need, do you actually carry that much stuff on a dive, talk about task loading.
I am not going to try and convert any of you to this style of diving. Just defend it from the naysayers.
Better check out your stats again on the deaths, examples can be found in this forum on them. It is not technical diving that is causing deaths, it is untrained people trying to do something that they are not properly trained to do that is causing the deaths. OW divers going into caves without the proper training and equipment, doing deep dives on "air", read "The Last Dive".
Enough, I'm stepping down off of the soapbox for now.
ID