Not sure if this helps but might answer your question about the topos showing more info than CNNA. http://advrider.com/forums/showthread.php?t=838762 The 2012 topos are now routable but appear to show less info than the older versions, all of which need to be purchased. There are free topos available at http://www.gpsfiledepot.com/, some of which are very good and you can load these into Basecamp and the Montana as needed. It really depends on the area....some of the maps are better, some aren't. Google and Mapquest have great maps but you'll have to convert your routes created in these to get them into Basecamp.