Took forever to get to this point...I've had mine for over 5 years and not a single problem. Sparred with them, and not a single problem other than the striking damage. Finally mine broke, after 5 years of abuse and training. Was really surprised when it broke...broke in half starting from about 2/3 of the way up to about 10 inches above the handle of the weapon. Further inspection shows that fatigue lead to the failure of the weapon...heck after five years its about time. All in all amazing weapon for practice and training,slightly heavy.