My dad came into town so I put him to work. He received about 15 min. of instruction on how to debur and dimple skins. I had to go to work and he had the skins finished that evening when I came home. I labled the skins "dimple" and "bumps" on each side. That was the only thing I was worried about. If he dimpled on the wrong side that would be a bad thing. But he did great! Thanks, Dad!