I'm in a Class B, so keeping up with traffic on the Interstates or winding rural roads isn't a problem, but I still keep it to around 350 miles a day. A little less or more if there is a better place to stop that way. Most of my trips are shorter than that, so far, except for going to Florida for spring training. Did push it once, doing about 570 miles to get back home, but my back bothered me for weeks, so I've been cautious since then. There are a lot of different ways to do this, so go with what works for you.