I'm trying to plan a ride for the weekend for the first time with BaseCamp and my Garmin Montana. The map is a routable topo map. I will be riding both on roads that are visible on the map and tracks that are not on the map. Should I use tracks or routes? Or a combination? Or something else entirely? It seems BaseCamp got support for "mixed routes" (whatever that is) a few months ago (version 4.2.1). How does that affect me? When I'm done with the planning in BaseCamp, what settings should I have on my Montana so it doesn't mess with my ride planning when I upload it from BaseCamp to my Montana?