Backing into A Blind Spot

Every once in a while I have to back into a blind spot. They are more difficult because you can't see the trailer wheels. So what I ended up doing is attaching a visor mirror to the visor on the passenger side, rolling down the window and adjusting the visor to see the trailer wheels. Of course a spotter is good to make sure you don't run over something. Then it is a matter as how much of a jack knife is required for narrow roads. BTY I perfected my backing skills watching how 18 wheelers do in their driver school; and practicing what I learned in a large parking lot. I would recommend that every one take some kind of driver training that include backing 5th wheel trails. that is how you get the fundamentals to learn the best way.