I was wondering what the opinions are of the finger hole on the dankung style slingshot grip. I believe Joerg used the term "lock" to describe the way the finger in the hole stabilizes the slingshot. I am asking because I'm thinking about making such a hole in the handle of a wooden board-cut slingshot. Has anyone tried this type of grip on a wooden slingshot? By the way, I was just on the dankung website and noteced a few more models have recently been added.