Congrats on the Sundance.
Several posts on here with links to backing in a while back. Try a search, if I can find it, I will reply again with a link.
Just don't try to learn at a crowded campground with a large crowd watching.
We always draw a crowd, because we go back and forth sooooo many times. Ha, I saw we give a good show in case anyone is board!
Good luck,
Nita
***found it, hope the link works: //heartlandowners.org/showthread.php/15458-Backing-Up?highlight=back+up