You can get the scratches and gouges out, by sanding, and then using a rubber abrasive wheel, in different grits, and then use the felt wheel, with the white compound. You can get a mirror finish on them. As for kaping bone, I can't tell you anything about it. Haven't tried it yet. as for the originals, most likely they did just smash them. The notches could have been made by simply rubbing a thin sided stone, and grinding the notch in. Bone can get pretty sharp, and I think the notches were two part, as that may be how they made the stone points, and also the notches, were able to inflict more damage to the surrounding tissues, and organs, thus more bleeding. Especially as the animal moved, and the arrow hitting trees, and bushes, etc. Yeah, it is a lot of work, even with modern tools. But they may have been made for cerimonial reasons, but whatever the reasons, not much stone, in a particular area. Maybe the persons who made the bone points, weren't knappers. But it must have been a good reason to them, as was said, it is a lot of work, especially with ston tools. But, ......as they say....." It's a mystery...... "
Wayne