finally have used mine a few times now, and must say along with the large bubble level on the front of the trailer, it made getting level while traveling by myself almost effortless. back or pull into site to about where I want to be.. look at the level to see which side is high and which is low... place the levelers against the tires on the low side. get back in the truck and pull it forward until level (watching the big level on front of trailer. get back out and place chocks under levelers, place chocks around tires on other side and begin unhooking process. Only requires one extra time of getting in and out to get it level.. with the blocks sometimes it took several times..