I found some pictures of a Big Broadsword Form practiced in the Seven Star Praying Mantis lineage. I wanted to ask if this form looked legitimate or not.

http://www.martialartmantis.com/thebigbroadsword.html

It is interesting to note that on his website, there are pictures of him "practicing with the Japanese sword." From the pictures, the form seems very Japanese, probably contrived by the Sifu himself.

Any opinions? Does anybody here practice with such a weapon?