Manji sais

What is your opinion of the Manji version of the Sai? Has anyone here had any experience with them? How do they compare to a normal sai? In case you don’t know what weapon I’m talking about, here’s a picture:

http://www.bushidocanada.com/oldpages/2134.jpg

Any comments would be appreciated

u hold them differently, and attack moves are performed in a different way. I guess

Martial Arts Mart, this forum’s sponsor, sells them as “Yin Yang Sai”.