I believe that the WWII is just a bit longer. I have a villager BAS, it's nice, except for a small handle. I plan to fix that eventually. Most people who have both seem to like the WWII more, it has some really die-hard fans among the khuk nuts. I will say that the Sirupati is very nice for a lightweight khuk, I picked up a 12" model and it's very sturdy, more so than nearly any other knife it's size. Remember that the words small and lightweight, when applied to HI khuks, are only relative terms. The little ones are still bigger and tougher than just about anything else out there.