Listen to your feet! When the wax gets dirty, smooth, or melts into a slick mess, it’s time for a fresh coat. Old wax loses its grip, turning your deck into a slip ’n slide on a critical drop-in. A good rule is a basecoat for a new season or travel spot, and a light topcoat every few sessions depending on the heat. Scrape off the old gunk first for the best stick. Good traction equals more confidence to charge.