Actually it is pretty clear that while you may be able to do that, it is not at all the purpose of using the system. Because DiveRite is throwing videos up unedited, and not pulling old videos down, and not arranging the videos in chronological order, and is not updating their own product webpages to reflect new approaches it is hard to put together.
On top of it all, all divers always claim to be doing things a certain way forever way before anyone else did it that way. While DiveRite does not spend much time talking about their own flailing through different approaches that ran into problems, and they include lots of fairly recent video (2009,2010) of using approaches that they claim to have given up in the 90's, or even in the 80's in one case, the fact is that the system they have now (2012) is the end result of trying and discarding other approaches. In order to appear to have known everything since the beginning of time in the talking during the videos, they are failing to acknowledge that this new approach is actually something new and different to 2012, and it is not what they were doing even last year(2011).
It is not a combination of approaches, it is a different approach to how to how things hook up to a bungie while maintaining hard metal attachment out of the water, and allows a ring that the upper tank clip to to be repositionable and still bungieable, with the upper tank attachemtn point in a specific location on the tank. Not using it this way is just using another bungie system, which generates various problems with mulitiple tanks (which the Nomad system just makes disappear). One tank per side works well enough in good conditions with any setup, but because hook up of the upper end is relatively insecure in a bungie system (either in terms of the dry weight of the tanks over powering the bungie, or because UW they are positionly insecure, or have to be fixed into position and left) , bad conditions makes three or more tanks a real PITA, or it did before the Nomad system (chokered clip, stages strap, shoulder mounted upper clip, upper clips snaps to a ring that hangs unde the arm off a solid metal attachment, which ring is bungies to pull into position.)
There a several parts that if not used together makes the system as unwieldy as any other bungie system. If you loop the bungies then it is not going to work the same, because the tanks will be sloppy in and out of the water, and you lose the ability to reposition them freely. If you do not use the clip chokers it is not going to work the same, because the clip can wander and tangle. If you do not use the stage straps it is not going to work the same, because their is no other way to fix the bottom of the top clip on the shoulder of the tank. etc.
Not using the system as designed is no big deal, but it is also not going to generate any benefits over all the other systems which are annoying to use out of the water, and/or hard to hook up on the move underwater systems out there. The upper clip needs to be on the stage strap so that the clip can be bound to the valve, so the the tank is not wiggling/swinging around with the length of the clip providing lots of slop, and the clip itself simply never needs to be found because it always in the same place on the bottle.
The chokered neck clip is the heart of the system because it fixes the upper point to a location (the ring) that is on a bungie. If a diver is not going to use the neck choker, and/or not clip it to the ring, then the DiveRite hardware is just the same as everyone else's. And the chokered neck clip itself is something brought over from the 2009-2011 system of clipping the neck clip to the bungie rather than the Ring. The neck clip in that system was easy to hook up, but the bottles were sloppy as hell in the water, which made the neck clips not seem to be useful.
And the valves chokers just weren't useful in the 2009-2011 DiveRite system, because the tanks were always in each others way clipped off, and not stable out of the water, because bungies are just not stable enough for many conditions.
