What kind of soil you have up there? Down in my parts we got that good red clay which can be damn near hard as a rock when dry lol. I can dig a 2 foot hole with my favorite post hole diggers pretty quick, but that rate slows each time there’s another hole lol
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We've got gray clay if that's a thing. Also been through some more rocky soil. That's a bit more interesting. Just make sure you hold on tight out you may destroy your wrist.