Gary Picket and I were able to do some fairly extensive experimention at the bison butchering experiment. Unmodified flakes worked well for slicing through hide backed by bone (legs, skull). Unmodified flakes did not work well for skinning, lack of serration, to sharp to separate hide from carcass, leaves to much meat on the hide. Unmodified flakes are very hard to hold and control the get slippery with fat and blood on them. They are awkward to hold during the cutting process without a bone support behind them. Unmodified flakes do leave striation cut marks on the bones, very thin and highly distinguishable from biface butcher marks. The first cut in the skinning process is to free the hide from the legs of the carcass; this is where the unmodified flakes were most effective. Furthermore the Unmodified flakes we very important in the separation of the liver from the gallbladder and other delicate operations requiring very precise surgical slicing.
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