If you find them out here in West Texas, they are called Washita points, as long as they don't have a notch in the middle of the base. If they have this notch, they are called Harrels or Toyahs. Harrels often have tiny serrations andToyahs will have very deep serrations. The Harrels and the Washitas look exactly like Cahokia points, only smaller and more narrow. I've made a few Cahokia points. The rest are Harrels and Washitas.
I don't know what a "cutbank" is.