I don't bother with legs, I only get back tendons. Legs are hard to process, back tendons are easy. A local processor saves the back tendons for me, and I usually get 4-5 pounds of dry back tendons each year. I scrape them clean, including removing the membrane, then dry them on wax paper under a fan set on its lowest setting. The tendons are dry in about 6 hours. I then comb them on a home-made sinew comb made of pine and finishing nails for storage. If I didn't comb, I'd need contractor garbage bags to store all of the back tendons, I end up with so many.