High lift jacks are only as safe as the person using them who typically has no idea how to safely use them and when it's not safe to use them.I have been off roading for 34 years, all over this country from ME to CA. Watched people use HiLifts.
I wont own a HILift!
Ive seen them go through Jeep doors and radiators when the Jeep/HiLift slips Ive seen them send the operator to the ER!
And you want to use it on ice/snow or where the truck is on ice/snow.
You Better have REAL good Health Insurance. And who's going to cover for you when your in the ER?