You must know your draw length first before you buy a used bow and be sure it fits your length. Too long and you will hit your arm with the bow string and it will be less accurate. Too short and you will be giving up performance because of a shorter than necessary power stroke at the shot. The string and cables are fairly costly to replace if you can find a source for them at all so look at their condition also. I just made a set for a friend's Reflex Bighorn and he checked at a dealer for a price and was quoted $65.00 for the set so they do make up a large part of the cost of a bow. Good luck.