Thanks all. I would not be concerned except that in Chunyi Lin's Level 1 materials,he directs the student not to mix Gigong methods.
Without checking out other Qigongs one would not necessarily know how well one's method is working for that individual, hence the interest in other methods that probably all QiGong practicioners are considering through out their experience. The Qigong would not have evolved so much over the centuries if practicioners weren't looking for more effective and efficient methods.
Also when working with specific organ/meridian exercises one also goes through some searching to find a method that is effective for that condition.
I guess we are always on the path of change.
