You are diving your SE7EN when you notice a free flow. You know that if you can reach your tank valve you we be able to shut it off and then "feather" it on and off in order to conserve your precious gas. Unfortunately, in your drysuit you are not quite limber enough to contort yourself and reach up and over to control the cylinder valve.
This Cylinder Inversion Kit is preferred by technical rebreather divers who want to have easier access to their cylinder valves in case of a failure. By turning the cylinders upside down, this kit allows the dive to comfortably reach behind their back and manage their cylinder valves, which could be crucial in certain underwater events.