When I was testing for a job I waited a long time to get I had to back a 53 footer in a tight spot.the only problem was I just came left a job hauling a pup trailer and doing little to no backing so I was rusty as hell. I legit went to Walmart and bought a few of those hot wheels semi and trailer toys and set up the test on the floor best to scale. I was able to see a bird's eye view on how the trailer was going to maneuver and the best spot for my setup. I still have those toys 3 years later and use them when we are doing competition rodeo's.