They also have a blue Bump. I started to get it but, did not think it's engagement of the framelock/tang was quite as full and distinct as this green one. The color was a toss up so, I went with the green one.
I agree about the stud lock. Its just, well, a bit funky. Perhaps one gets used to it but, from handling the knife at the store my initial impression was that it is quirky. I am conservative when it comes to locking mechanisms. Just give me the tried and true. As well, I did not favor it's more pronounced recurve blade over that of the Bump but, this is purely preference. It was still a nicely executed knife and the G10 scales felt good in the hands.
Too bad they did not have the Leek ZDP-189, I would have acquired it too.