Hello, I just looked up Zhan Zhuang as I wasn't familiar with it by that name, and find that it is a pose that Master Lin actually does demonstrate and suggest in his Qigong for Weight Loss video. So I would see it as perfectly compatible with SFQ. I have done that pose before, it was my first intro to qigong BEFORE I started doing SFQ. Very good and centering, also sometimes good to ACTUALLY hug a tree while doing it. I'm blessed to have a great one in my front yard, perfect for the task - an old, wise very large cedar tree.
Namaste,
Stephanie