I have a nice police force but the main ramp is worn and cloudy. In good structural condition but I would like it to be more clear. Short of spending $350 for new replacement ramps, does anyone know if you can flame polish them? I’ve seen it done on some old JP games. But I’ve also read NOT to do it on games manufactured before 1990 because it’s a different type of plastic. Thoughts? Has anyone flame polished their Police Force ramps?