I got my particular Smoke off ebay. My 14 year old son kind of stumbled onto it and it was cheap so we bought it. All I can say is that they are an excellent bow with very little shock. I had injured my elbow many years ago and some bows irritate my elbow, but not the Smoke. The draw length is adjustable by changing modules on the cam. I like this bow and do recommend it to anyone looking for a smooth single cam bow.