According to Centaur White Lightning Installation Instructions, White Lightning® fence systems require specific components like Lag Corner Insulators with built-in insulated rollers to allow proper tensioning and avoid damaging the coated polymer jacket. Using a standard spool-type porcelain lag insulator (like the Dare 2799) on tight White Lightning® runs can pinch, scrape, or fail under high tension compared to rolling or specialized slick-surface corner/line brackets designed for coated rails.