You're a GUE guy right? Ponies are doubles and helium past 100...
If you've set your rig correctly then it isn't a problem. What most people don't do when adding an air2 is lengthening the corrugated and inflation hose to properly reach their mouth without pulling. Butt dumps for your wing, left arm for your drysuit, their buoyancy is theirs to control unless incapacitated and then you go about it as you would if using a normal reg. Quit all your voodoo about something you haven't even attempted to set up or use correctly as it was intended.