Ive invented these things as part of my multi point van security armament. I figure the more small things i can do, the more inconvenience i create and the more likely that crooks will leave my van alone ..... and focus on someone elses
Theyre certainly more effective on slopping sites, but they will work to some degree everywhere.
More often than not, a site will slope in one direction or another. The site we're currently on slopes down toward the back, and the front of the van (and hitch) is only 200mm off the ground.
Locking the "Crusty Drop Leg Super Dooper World Famous Lock System" onto the rear drop leg winder, evil turds cant lift the hitch onto a car, because the stablising legs cant be wound up. If the site slopes to the front, they attach to the front winders stopping the hitch from being lowered onto a car
Ill also remove my jockey wheel and use a car stand in its place ...