You need to split the ears, very carefully by hand with a scalpel blade. Split them clear to the tips or at least close to the tips, you can leave the cartilage in for now,the next thing if all fleshing is done, pickle the hide,then go back and peel the cartilage out of the ear being carful not to rip the ear, you may have to cut lightly to help the cartilage pull away from skin. Do this all the way to the tips of the ears, you may make a couple of holes on the edges of the ears but that is an easy fix. Now you can tan. Hope this helped if you have anymore questions be happy to help.Cody