This was a flake of central TX material that a friend gave me.
I direct percusioned the preform then notched it from the bottom with a sharp nail flaker, then micro flaked the edges with the nail.
This was the first time I ever notched one from the bottom. It worked really good.
I always get the mid section of the base too narrow on these, but it was a fun change up.
another thing I did different than usual was I used a fine abrader. I normally use a really coarse one and grind the crap out of the edges, but I always had issues that I didn't seem to have on this one. Seemed to take less force to detach flakes.