I have one of these, and they do work better than the Havalon style, but cleaning them is a pain.I really think the Outdoor Edge is the answer here. Cuts like a Havalon, just a touch heavier, but still robust. I'm not great at the knee joints and the skulls and I tend to pry a bit and I've never broken a blade.
The only downside I see on them is sometimes they gum up and replacing a blade isn't as straight forward as a new or clean knife.