Sifu Chau - learnt LHBF in Hong Kong from two different lineages : sorry I do not know there names.
One of his teachers was a student of Chan Yik Yan.
The LHBF form he taught he said was a combination of the two teachings.
As for myself I would like to know more on LHBF - yet I'm still chewing through Kunlun Dayan (Wild Goose) Qigong.
Originally a huge system of 72 components (qigong, boxing & weapons)
These days only the qigong element is taught which consists of 23 moving, sitting & standing qigong.
I'm yet to reach half way .............................