I was reading in an old knife book of mine a little artical on khukris and the auther said that he was told that the cho reppresented the trident of shiva. He gave a couple of pics showing the trident in shiva hand as well as statues, I admit the shape of the cho does look like the shape of the trident. Anyone else heard this? Also I was noticing on the pixs of the old khuks that the end of the blade next to the cho on most of them sweeps out and looks quite sharp, any known reason for that?