OK, while Beiming Shengong, Xiao Wuxiang Gong, Tianshan 6 Yang Zhang, and other Xiaoyao Pai MA are often discussed, the White Rainbow Palm used by Li Qiushui is hardly ever mentioned, that I've seen anyway.
The reason could be not much is known about it. Is that the case? It's been a while since I've read about it. Does anyone have it fresh in their mental repository? What exactly do we know about it?