OP
leadweight
Contributor
The key word regarding PADI teaching long-hose is Tec. Most recreationa divers would preceive the long hose as inconvenient. An octopus can stay attached to a scumball through a day of diving. The main just hangs conveniently and goes in the mouth in a simple movement.
Gearing up with a bungeed octopus is an extra step to don the necklace. Managing a long hose on the main requires clipping it off or it will hit the floor and a big more effort to gear up. Not a lot of effort in reality, but inconvenient for the once or twice a year diver.
Drop down to a more convenient 39" hose and it goes under the diver's arm and will make for an uncomfortable pull on the regulator unless a 90 degreee fitting is used, which may reduce breathing prerformance. However, this would be long enough to handle the recreational out of air emergency. I suppose the necklace only offers a slight improvement over some other way of attaching the backup reg to a BC. That would result in a donate the main system without the preceived inconvenience.
It would be an improvement over what we have now because everyone would donate their main. Let's see:
1. Standard Main/Octo, hoses on right.
2. Standard Main/Octo on left.
3. Either of the above with octo in a pocket, including the HUB.
4. Alternate air source mounted on BC inflator.
5. Long Hose/Backup on necklace
6. Standard Main/long hose on octo, bungeed somewhere.
Add further permutations. Long hose required for recreational divers is not likely to happen. But, just a switch of the 28" and 39" hoses with an efficient angle fitting on the main, might be something to work towards. Unless you want an all or nothing world.
Gearing up with a bungeed octopus is an extra step to don the necklace. Managing a long hose on the main requires clipping it off or it will hit the floor and a big more effort to gear up. Not a lot of effort in reality, but inconvenient for the once or twice a year diver.
Drop down to a more convenient 39" hose and it goes under the diver's arm and will make for an uncomfortable pull on the regulator unless a 90 degreee fitting is used, which may reduce breathing prerformance. However, this would be long enough to handle the recreational out of air emergency. I suppose the necklace only offers a slight improvement over some other way of attaching the backup reg to a BC. That would result in a donate the main system without the preceived inconvenience.
It would be an improvement over what we have now because everyone would donate their main. Let's see:
1. Standard Main/Octo, hoses on right.
2. Standard Main/Octo on left.
3. Either of the above with octo in a pocket, including the HUB.
4. Alternate air source mounted on BC inflator.
5. Long Hose/Backup on necklace
6. Standard Main/long hose on octo, bungeed somewhere.
Add further permutations. Long hose required for recreational divers is not likely to happen. But, just a switch of the 28" and 39" hoses with an efficient angle fitting on the main, might be something to work towards. Unless you want an all or nothing world.