Rick Hamilton of Spirit in the Wind of Nebraska, prefers the traditional "Abo" method style of flintknapping. "Abo" , short for "aboriginal knapping"  describes the oldest method of flintknapping using antler, wood, and hammerstones, as the tools of choice. Flintknapping is the ancient art of producing arrowhead points and tools from stone, by removing small chips or flakes with percussion and pressure flaking, until the desired shape and thickness is achieved.  Some modern knappers today, use copper for tools, and also work from slabs of rock cut with saws. The benefits of slabs are a more efficient use of lithic "rock" material, faster production, and less knowledge of the percussion reduction sequence is required, as slabs can be knapped using pressure flaking only. While there is some evidence that copper may have been used later in the archaeological record, the "Abo" method is accepted as the oldest and most widespread. There are few true aboriginal flintknappers today.