Breathe

The thing I learnt about qi gong there are as many ways to do it as there are people to do it. Someone also told me if you pay attention to the energy moving you find yourself breathing at exactly the right place and right lenght for you and your energy.
Perhaps someone can be more specific. Personally I found the easiest way to do qi gong is to to just allow myself to relax into it. If I breathe in at the wrong time I figure I may lose 0.5% of the benefit of doing qi gong however at the end of my practice I have at least 80 to 90% benefit and enjoy it more than concentrating on when to breathe where my hands have to be. I like the emptiness more so I admit. I check my anayliser at the door when I do qigong. 
Alex