kommisarrex
Contributor
Back to the OPs question, why not go with two long hoses with a Lh reg on the left and a rh reg on the right? Have them go direct to to your mouth (nothing behind the neck) and always donate from the mouth. Excess hose gets tucked away and the unused reg get clipped to either the left or right d ring. Could even put them both on breakaway necklaces if you prefer. Seems like it would be streamlined, no dangling hoses, easy to remember which reg is which (left reg is left, right reg is right) and easy to coach buddies on donate from the mouth. What am I missing about this config that makes it suboptimal?