Day 6 - 2 1/2 hours ** I actually did the sinew job yesterday and was tired and not in the photo editing and typing mood. **
I every tool I need to apply sinew in the first picture. I will explain the uses for each as I go. The first tool is my homemade shredder. I use only back sinew because Im a lazy sinewer. Its just some 3/4" long subflooring nails and some 1/4" slats of hickory backer cutoffs. Used the way I use it, it does beat up the surface under your sinew as you rake. I would suggest an old chunk of formica or something. Maybe even an old cutting board. I hold one end of the sinew and drag the shredder over it in various directions until its broken up well.