The windex on my Catalina 30 is in a location where it is impossible to get a tool around the bottom nut. It is up in the shiv on the masthead where the metal is thick. I sent someone up the mast a few weeks ago to put on my new windex. They didn't get the nut tight enough so it worked its way loose and spun around. A nut driver will not fit in this location. The only way that we could tighten it was to wedge a regular screw driver beside the nut and turn the bracket that the windex goes onto.Has anyone had a similar problem and been able to solve it when they sent someone up the rigging? Does anyone have any suggestions that may be able to help?We are thinking about trying to spin it on again and putting locktight or trying to put a lock washer on the nut (it will be a hard job to put the washer on there because there isn't much room to play with).