The method 1 wherein said step of selectively abrading comprises moving said separated loose pellets over said first face wherein said separated loose pellets have a lower coefficient of {HEAD ~ friction} with {TAIL ~ said first face} than the coefficient of friction between said log and said second face 
with
The method 1 wherein said step of selectively abrading comprises moving said separated loose pellets over said first face wherein said separated loose pellets have a lower coefficient of { HEAD ~ friction } with { TAIL ~ said first face } than the coefficient of friction between said log and said second face
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH