Assuming you are approaching your site and it is on your drivers side, try driving a little past the site until your rear wheels are just past the edge of the site (hug the left side of the road). Then turn your front wheels hard to the right and pull forward as far as you can. Then turn your front wheels to the left and back up slowly. With a little practice you should get centered in the site pretty easily. Depending on the length of your coach and the length of the wheel base the point where you stop and turn your wheels can vary. My coach works good a little towards the middle of the coach from the rear wheels. If you approach a site from the passenger side the wheel turning is opposite and for me a little harder to see just where the edge of the site is.
