My friend,
You are a teacher, and I'm quite sure that in your studies you have heard many versions to each and every event in history. Which one do you teach?? You teach the one that you are most comfortable with. So if you are comfortable Springforest Qigon then practice what it teaches to the fullest, if not use the other. I to have looked at others out of curiosity and have found conflicting information. I, for one could care less, as Springforest Qigong offers everything I need and will ever want. My humble suggestion to you is find one that suits you and use all your energies in it's practice. The benefits and rewards are well worth it.
I might add that I find the satisfaction of the Small Universe exercise very exhilarating and most fulfilling..
may the rest of your life be the best of your life
justcappy
