I purchased the Rand McNally RVND 7725-LM, because of the RV features, advertized by Camping World and endorsed by Good Sam.
The problem with this unit is, it routes me on a longer route as compared to the trip routing features on the Good Sam site and my old Tom Tom as much as 500 miles. It gives the same route on the car setting.
I've talked to two differant tects at Rand McNally. They know this is a problem, but said there is nothing they can do to re-program, that's how it's designed.
One tect told me to put in shorter trips, to get to my destination, that way, the GPS would keep me on the same route as my Tom Tom or Good Sam routing.
Comparing the Good Sam trip routing and my Tom Tom, on any route, only varys by a couple of miles.
I have requested my money back from Rand McNally and Camping World. They refuse, saying, I've had it more than 30 days.
What a joke, after all, Good Sam endorses this gps.
Lillyputz