Cool! I don't think of it as cheating. I think of it as achieving a goal. I want an arrow head, or knife blade, I would use it. I have not yet been able to get a nice knife blade. I have improved to the point that I can percussion a blade pretty much to the dimensions I want, but can't get the long traveling flakes. They are longer than I used to be able to do, but not the length I want. As it is with other things......
But I think it is a pretty cool idea, and no different from using the fluting jig. I just might have to make one. He doesn't say much on making it. I would assume that the board with the eye hook is attached from the bottom with a nut and bolt or two, in a slot, so it can be moved closer, or farther back. Anyway, pretty cool. Thanks for sharing.
Wayne