Don' t back out your limb bolts more than 2 1/2 turns from bottomed out! My wife' s brother also bought a very nice used BKII and someone had backed the limbs off too much and allowed the limb pocket liner rubber to slip out of the groove inside the limb pocket. Your' s might have the same problem. Take it to a good shop and have them take the limbs off to inspect for cracks and limb fit in the pocket. There is a rubber " O" ring like material that makes the limb fit very snug in the pocket. This material is located in a groove inside the pocket and held in place with grease during the installation of the limbs and can come out of the groove if the limbs are backed out too far.