Since someone asked to make this a new thread here it is
In my opinion all currently preferred bungee systems work identically with only cosmetic details separating them.
Loops, floating loops, two separate bungees or a single bungee all work best with matching valves and ingenious twists of the bungee around those.
They also work with any non matching valve 'somehow'.
Depending on where the bungee is attached they also influence the best position for the tank valve.
With loops attached behind the shoulders full or heavy tanks hang more comfortable if moved backward towards the legs compared to single bungee or separate bungee, both of which work best with the valve/first-stage more or less touching the shoulder D-ring position.
That difference is mostly cosmetic however. Minimal changes in hip D-ring and lower boltsnap positions are required to replace one bungee system with the other.
Some older systems like the ring bungee system work differently, but except for the ring bungee system most of those are used only by a very small and rapidly reducing number of divers.
In my opinion all currently preferred bungee systems work identically with only cosmetic details separating them.
Loops, floating loops, two separate bungees or a single bungee all work best with matching valves and ingenious twists of the bungee around those.
They also work with any non matching valve 'somehow'.
Depending on where the bungee is attached they also influence the best position for the tank valve.
With loops attached behind the shoulders full or heavy tanks hang more comfortable if moved backward towards the legs compared to single bungee or separate bungee, both of which work best with the valve/first-stage more or less touching the shoulder D-ring position.
That difference is mostly cosmetic however. Minimal changes in hip D-ring and lower boltsnap positions are required to replace one bungee system with the other.
Some older systems like the ring bungee system work differently, but except for the ring bungee system most of those are used only by a very small and rapidly reducing number of divers.
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