Thank you for the replies...the serving and the limb has been markedand centered but whenever I cock the crossbow, one side is always longer than the other, I'll say that if the serving is 4 inches long, 3 inches would be on one side and the other inch on the other side when I cock it.Iam thinking that the limbmight have been damaged during shipping, i'll try calling Barnett on Monday and see if they can send me a new limb. Thanks again....