I have a pop top on my c22. which when up is held in place by a movable hook which is on the mast. One time the screw on the mast holding up the pop top was not secured well and the top collapsed on someone's hand standing in the companionway. Fortunately, the only thing that happened was serviously bruised fingers.I now secure the pop top by the normal way, plus I run a bungee cord around the mast and attach to the hinge points.Has anyone figured out a better way to assure that this dangerous event does not occur?