I've rattled in two bucks with a pair of synthetics I have. I think I got them from Cabela's. I've never tied rattling with real ones so I can't compare the two. I opted for the synthetics because I think their a little easier on the hands. Real ones can have burrs which can get a little uncomfortable on the hands. Though I guess if you were using real ones you could sand them off. Plus I didn't like the idea of having to use a rack off my wall.