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How on earth do you ascend when you are unconscious?how to ascend in case I had a heart attack or fell unconscious.
How on earth do you ascend when you are unconscious?
Even when you are diving recreational you are at best a "loosely bound" solo diver as evidenced by diving accidents that continue to occur while other divers are nearby in water at same time.
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I will answer this with an unequivocal Yes or No!are they really necessary at all?
Fix your deficiencies FIRST, and then make a decision about being a solo diver.