Yes, the siraui depicted in this thread are huge in comparison! Perhaps the smaller versions were originally meant for women a la Minang kerambit. I have yet to see an older one in this size though.
Due to the nature of the grip, it feels most comfortable in the positions I showed, but I think it could very well be used in any grip. My larger Javanese one is about 40 cm overall: I'll see if I can take some pics of it. It looks more like a kuku macan.
I am quite fond of this little knife either way.
