Actually, I don't ski with a phone app. My son does, and so does my son-in-law. When skiing with each this past winter, I tried each of theirs. Once the phone app said 65.9 and another occasion 67.8. Only two times I've used a phone app for speed. I know the apps aren't near 100% accurate. But those runs were not fast compared to many of my runs..
@Muleski - is this common? Is everyone @ the loaf skiing 70+ mph. I was thinking about bring the family up there next winter for a few relaxing days. But I’m having 2nd thoughts..