I use stone points that are 1 x 2 3/4.I know that a lot of buffalo were killed with very small points.But it took a whole bunch of them and many miles and days of trailing.I have to be at work on Monday. :)With the Archeology sites documenting bones with a boat load of points,makes me believe ABO's didn't carry a watch.I like my trade points 1 x 2 or 2 1/4" with a chisel point like ,Grizzlies.