Been backing trailers of all sorts for 45 years. My dad wouldn't let me get my drivers license until I could back the boat down the alley only using the mirrors without stopping to pull forward to straighten out. Now when I back my 5er it took a great deal of practice to get it to turn when I wanted and to stop turning when I wanted. Usually go low and slow, as I call it, and get out many times to check. Don't have a DW or spotter. Backing is half the fun of Rving.