As one senior White-Glove dispatcher once told me about the directions FedEx sends you via Qualcomm, "They're only recommendations, honey."
With every run, we map trace the route before leaving, using Delorme, Co-Pilot Truck or both. Once the best route is determined, we write the routing and the local directions on a notepad we keep on the dashboard. If Qualcomm fails (it has) we can continue to drive without taking time to boot up the computers or other interruption. Plus, it's easier and safer to see all the directions on a piece of paper when you are driving than to try to read them off the Qualcomm unit.
It pays to check the routing against your own computer mapping tools. FedEx routing follows major roads and usually maps the shortest route. We've seen it happen where adding just a few miles to the route or skipping one of FedEx's recommended shortcuts saves a great deal of time or makes for a much easier drive.
Once, by adding just seven miles to a route, we were able to totally avoid a night drive through West Virginia and drive instead through the flatter midwest.
On some New York to California runs, FedEx will route you through Ohio and Colorado, which takes you through the mountians on I-70. By adding about 100 miles to the route, dropping south sooner and picking up I-40, we enjoy higher speed limits, fewer tolls, and fewer major cities. In winter, that change can mean avoiding snow or worse.
In New Jersey, FedEx will often route you up or down the New Jersey Turnpike. I-295 runs almost along side the Turnpike for many miles. By taking I-295, you can avoid Turnpike tolls and avail yourself to some of the best-priced fuel in the northeast. (Flying J and Pilot at Carney's Point, and the TA at Paulsboro).
FedEx-provided routing and locals are a good start, but it pays to invest in computer mapping software and consider the alternatives. It also pays to invest in in-truck Internet access. When planning a trip, you can use the internet to check fuel prices along your route (use
http://www.dieselboss.com/fuel.htm) and the weather.
For weather, we like
http://www.weatherunderground.com/. There, you can enter any zip code, city or small town name and with your next mouse click, quickly get the current conditions and forcast on one page. We've found weatherunderground to be especially helpful with trips that take us over mountain passes. weatherunderground also gives elevations for the towns you are looking at. You can find the towns below and on top of the pass of interest and get a very good idea of what lies ahead.
If weather is bad on a route we'd normally take, it's back to the mapping software to explore alternatives.