All I have to say is that back mount open circuit sucks! There is no arguing needed. It just sucks. It sucks in every way possible. I dove it for years and regret every moment. Once you give sidemount a real try and get your act together you will never go back. Doubles... ha ha so 70's. I am sure you would argue against a rebreather as over complicated too... Join us in the new century and ditch the rotary dial phone of diving.
Hans

