Howdy all! We are in process of purchasing an Aliner Scout (a-frame popup), weight about 1,500lbs dry. I was planning on getting normal chocks but someone had mentioned the Bal "single axle tire chock" for our parking situation (driveway is on a bit of a hill). I like this idea because a child couldn't just kick it out of place and have the trailer start to roll . I was wondering if this actually "locks" in any way so you need a key to remove it? (seems to make sense to prevent vandalism). And if people like it, especially if it seems reliable on a slight decline. That led me to the BAL leveler which also intrigues because I am very sensitive to movement in campers (like elevators, I get some sort of balance issue) and something that would help limit movement and level the camper easier might certainly be worthwhile. I am wondering, can the BAL leveler be used long term as the chock on the other side (again on a decline) opposite the BAL single axle chock or will that somehow damage the wheel/axle/frame? Any opinions gladly welcome, the price is staggering, but if folks think it's really worth it I'd like to look into it further. Thank you!!!