GPS Route Versus PC Miler Route

I use googlemaps for all trip planning. You have to use your trucker's common sense with it as anything else. Yes Natchez Trace Parkway would save me a bunch of miles. No I would not want to pay the ticket I'd surely get if I took a commercial vehicle on it. What I like about googlemaps is that it's free and comparing various routes/transit times is simply a matter of click and drag.