We have something in common,, I belong to an archery club here that has maintenance days too,,, about 8 days a year,,, depending on what major tournament is coming. I'm not very good mechanically, but I'm a Cleaning Machine (peacetime Marine 79-83). So I took a responsibility that I could handle & most people will not touch. I choose the bathroom as my domain & decided to fix it up & I clean it once a week , takes less than 10 minutes. Everybody is grateful & its an easy task.
Here's the before;
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After,,,
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The point,,, go to the person who calls the shots at your gun club, probably the president & explain your concern & win his confidence. Ask him what details/tasks are needed at the club,,,, pick one that you can live with.