When people ask me if I like using my Carv digital ski coach, I tell them, “Yes, but it has strained my friendships.” That’s not a lie. Imagine inviting me to go skiing, and as you’re confiding ...

For Jeff Lifgren, a ski or snowboard lesson starts long before someone sets boots to snow and ends long after the day is done. “The entire day can really make or break the experience,” said Lifgren, ...