Filing edges and base grinding cuts material away so it shortens the life. Not a huge concern though. Racers typically wax and tune edges every 10-20 runs. Re

Filing edges and base grinding cuts material away so it shortens the life. Not a huge concern though. Racers typically wax and tune edges every 10-20 runs. Recreationally, if you are on a narrow groomer type ski on icy runs, every few days is great and will help you enjoy and improve faster. Well fitted ski boots are more critical though.