Just read the post on a mod for hard bags and it reminded me of his. Its a good idea to check the nut on the back side of the lock assembly. If the nuts works loose it may fall off fast, or it migh vibrate on the threads for a while... like mine apparently did. If the threads become too warn for a new nut to hold, you're on the hook to replace both lock assemblies. The have to be special ordered in order to match your key. A little dab of blue loctite will save you some bucks and aggravation if this happens to you out on the road.