Yin Ching Kuen
Taught as the third form by Sifu Garry Hearfield in Australia, and as an advanced level form by Sifu Loi Lok Fu in the US, Yin Ching Kuen seems to have a lot of Hung Gar/Choy Lee Fut type of movements - longer punches, more circular punches, etc. Also contains some dynamic tension sections. A very good set to use to develop fitness (one of the longest sets), hand combinations and footwork.
From http://www.nationmaster.com/encyclopedia/Yau-Kung-Mun - "Ying Ching Kuen - contains a lot of dynamic tension, muscle building, external ging & rib training. This is a cleansing form (health), hard chi kung."