I met Billy at the last Tenn Classic. I watched him work for a while and he gave me some help making small points. First, I can tell you that when it comes to these type of points, Billy is a master. Second, I can tell you from experience that you pretty much use the same knapping techniques on a small point that you do on any other point. Setting up platforms, following ridges, etc. As for difficulty, in a way it is harder. Things are much smaller. If you have difficulty setting up platforms or picking out ridges on a normal point, reduce the size and it gets even that much more difficult. And the tools you use are smaller and it takes a total different touch. For me, knocking a point out of middle of a piece of rock is difficult all in itself. Picking a small point out is just as difficult. However, if you knap like I do, you get a chance to work with small bird points a lot. I get them from the pointy end of my larger points after I bust them in half.
Billy.... Nice point!