If it were me, I would keep the larger ends for knifes. As a suggestion on the tines, really nice tines can also be used for knife handles. But sounds like you may have plenty for flakers also. I am sure others will have more suggestions, but I would cut them about 6 inches or so for a good flaker. I have seen some wrapped with leather for a better handle. They do get dull and I have a small file to shape the point. You can use a sanding stone, but file works better for me. I have also seen them filed flat and narrow to make a notching tool and files to use a a punch. When I was making and gathering various tools, I am pretty sure I saw a good post on making tools and it showed pictures of a bunch of different tines. I will look to see if I can find the post. And I am sure some of the guys that have a lot more experience will offer suggestions.