@Bob I remember hearing the story about Li Shuwen adding spear fajin to the sword, and was looking around the web for it the other day and came across something else interesting. From on a newspaper cutting from 1933 (the translation is not mine):
On May 19, 1933, Tianjin Yishibao interviewed Master Li Shuwen.
Question: "Sir, you are very skilled in martial arts, but what kind of weapons are you good at?"
Answer: "Long, short, double, single, almost all of them have been practiced. The main ones are Xingzhe stick, Wuxing sword, double sword is Wansheng double sword, single sword is Dingtang sword, big sword is Yanyue sword (Chunqiu sword), spear It's Liuhe spear, boxing is Bajiquan, and crossbow and five arrows, both short and single, all of them are included.”
In the additional notes it has more information on some of the above including:
Dingtang Dao, that is, Ye Zhan Jiumen Shisan Dao, was created by Li Shuwen's master, there is no Huo Yao Dao (Liuhe Single Sword), and the original Mengcun "old frame" single sword is Huo Yao Dao.
The Five Elements Sword, in Li Shuwen's Baji Gate, is relatively rare. Most of the disciples of the disciples practice Kunwu Sword (from Liu Yunqiao in Taiwan), Chunyang Sword, and Qingping Sword
https://min.news/en/culture/ec7dcd7e7b9a73720bef82addfbe7874.htmlThere is also that video on Youtube of Huo Qingyun performing a jian form, but I am not sure which one it is.
Graculus
https://ichijoji.blogspot.com