Nope I just use the AC maps as is. I can't imagine needing more detail than the AC maps. The only way I find them lacking is that they only cover the route and don't show enough of the surrounding area if you want to go off route. I do sometimes improvise alternate sections, but don't plan them before the trip. When I do that I usually just pick up a state map.

When not using AC maps I use either state maps or printouts from google maps.