Kai Men:
If you go to the sword forum, there are some postings under Chinese Sword section, Yang taiji Jian history.
I posted some things from the old Chen Style Journal.
Li Jing Lin learned his wudang taiji sword techniques from Song Wei Yi who supposedly learned from a daoist in the mountains (not too comfortable with that, everyone seems to have a hidden daoist in the mountain).
Chen Weiming, disiciple of Yang Cheng Fu, in his sword book, tells of Li Jing Lin teaching him some of the sword fighting techniques and exercises that Yang Cheng Fu had not taught. Chen indicates that Li Jing Lin's sword is indeed a taiji sword.
If you find any other info, please post.
Thanks.
"Its better to build bridges rather than dig holes but occasionally you have to dig a few holes to build the foundation of a strong bridge."
"Traditional Northern Chinese Martial Arts are all Sons of the Same Mother," Liu Yun Qiao