Gung Li Kun form ?

[Firehawk4]

I have this book by sifu HB Un called Gung li kun is this some kind of northern isometric dynamic tension form like the forms in Hung gar ?

[David Jamieson]

Gong Lik Kuen
Gong Li Quan
Gung Li Chuan
Kung Lek Kuen

etc etc. They are about developing connection, stepping, root, striking power and style basics. Hence "power generating" in the name.
There is no singular power generating set. Rather, many styles have them and some call them different names.