My rule of thumb is to get the edges tuned once a season (I clock ~40 days), usually after the last of the rocks is covered up by the initial snow. If one skis less than that, it's possible to get away with every other season, but keep a gummy stone to deburr the edges as needed. If anyone has any methods to reliably grind edges at home, I'd be interested. I have one of the edge tools and a bunch of files, but I basi…
Or with a tool like Swix TA3008 it's hard to do wrong. Maybe need someone to set up the base angles, but then you can use it to touch up for years.