I'll be honest, I really only use a map to get a feel for things. I still end up walking the whole property usually.
Sometimes the places that hold deer don't look like anything on a map. This is especially true for large tracts of timber. And nowadays using a topo or aerial is pretty common. It's not really an edge anymore. Gotta stay one step ahead.
Saddles, water access, bikes, and maps aren't really an advantage over other hunters any more in most areas. The arms race never stops. Sweat equity and time in the woods are the two things that most people can't expend enough of. Always has been, always will be. If you can be in the woods more, that's the easiest way to "get ahead."
That's why I moved onto the local WMA.