I generally don’t like knives that you have to think about using, have to think about holding in a certain way, or have to train with in general.
That’s either because trying to reinvent the knife is on the same shortbus as trying to reinvent the club or throwing rock, or because I’m lazy and I don’t like to expand my horizons.
But I don’t like it when people say holding a knife backwards or upside-down gives you tactical leverage, because there’s no such a thing as a knife fight and there’s no such thing as a knife-fighting expert.
That being said, the Karambit’s different. You have to hold it differently because that’s the way it draws. And boy does it draw, check this out: