I mount my Hi-Lift to the floor in my backyard shed where it provides a home for the shed's couple of resident black widow spiders. Actually it just lays in there.
I stopped carrying my Hi-Lift years ago, I personally just never really needed it and it was just an unnecessary amount of weight. They certainly aren't needed for changing tires or the problems I run into on the trail.
If I ever need one on the trail, there will probably be 8-10 of them within 300 yards of me at any given time.