I believe Atomics come from the factory with some camber in the tip and tail, and grinding them takes it out of the base.
And yea, they aren't back up to speed until after 10 waxes, a few days on the snow, and several more waxes. That's a crapload of work every 20 days. In fact, you're better off grinding them, if you must, once a season, but even then, the work required to bring skis back up to speed is immense.