I use search 4 sites in conjunction with copilot caravan on a Samsung tablet for finding and navigating to sites, s4s calls the default motorhome set up in copilot when using the navigation option so if you put in your weight and dimensions into copilot don't save it with a new name just save it, that way copilot shouldn't send you down an inappropriate route. I found out the hard way when copilot sent me down a very narrow mountain road in Spain because it thought I was in a smaller van then I was.