Jeff,

You might want to check out this post from stuff.com about ride height.

http://www.prevost-stuff.com/cgi-bin...=000096#000008

Also, although I'm not positive, I think when you're in level low, the 3 ride height valves that help distribute the load are now disconnected. Unless you're trying to traverse something say like Jon's driveway I would stay in ROAD mode.

Keep us posted.
Mike