I use these but with this caveat: I don't encounter ground that is frozen solid in my winter playgrounds. It's usually just consolidated snow and at worst some "Sierra Concrete" late in the season. I have used Eastons in the snow but there's not much friction to keep them in place when the wind kicks up, at least not until they freeze up at night.
_________________________ If you only travel on sunny days you will never reach your destination.*
* May not apply at certain latitudes in Canada and elsewhere.
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