I wonder if experienced Double Hose regulator users can offer some opinions on relative air consumption of single vs double hose regulators? After many years of diving single hose I am at a point where air consumption is not a real concern for me. Since my experience with double hose is limited so far to swimming in small circles at 12' in a swimming pool I cannot judge how fast I am going through air.
At normal depths of say 40' - 100' will I notice an increase in my air consumption to an appreciable extent?
Thanks for your comments.