How many hours did that take you?
Just making a thin biface so it only took about 30 minutes. When your doing nothing but reduction percussion work it goes pretty fast. What I didn't mention was when doing this I concentrate on taking off large usable flakes to be used for other tool and points. I'll get almost 30 points and another fairs size blade out of that piece. I saved everything from that piece and will eventually take a photo of all the tools made from it. Depending on the breakage ratio I should get close to 25 points, the other blade is already completed.