The long hose is also more versatile. You do not have to deploy the entire hose although that is the proper way to use it. In training situations, I use a 7 foot long hose to perform old-fashioned buddy breathing with the donor on the right by leaving the hose looped around the neck.
In real-life working as a dive guide, I've used the long hose for recreational divers who were trained to hold onto the buddy when they've run low on gas in the same manner, leaving the hose looped on the neck and donating very similar to a standard recreational octo. I believed they'd be more confused, stressed, and task-loaded if I deployed all 7 feet of hose in some situations.
To deploy the hose, just dip the head as you push the reg toward the OOG diver and the hose will deploy. Tucked into the belt the entire hose will pull free. Tucked behind the light you need to clear the hose from under the canister. The OOG diver gets a working reg right from the mouth. Like in this video:
You can also donate with the light in your right hand like in this video although the light on the left hand is preferable. Recreational single tank divers benefit from lights to make the dive more enjoyable (see vivid colors) and safer (signaling).
In real-life working as a dive guide, I've used the long hose for recreational divers who were trained to hold onto the buddy when they've run low on gas in the same manner, leaving the hose looped on the neck and donating very similar to a standard recreational octo. I believed they'd be more confused, stressed, and task-loaded if I deployed all 7 feet of hose in some situations.
To deploy the hose, just dip the head as you push the reg toward the OOG diver and the hose will deploy. Tucked into the belt the entire hose will pull free. Tucked behind the light you need to clear the hose from under the canister. The OOG diver gets a working reg right from the mouth. Like in this video:
You can also donate with the light in your right hand like in this video although the light on the left hand is preferable. Recreational single tank divers benefit from lights to make the dive more enjoyable (see vivid colors) and safer (signaling).