Took a trip last month, and I had used Google maps to make a custom route from my parent's home in Virginia to my sister's house in South Carolina. I created a route so I could travel on the Blue Ridge Parkway the majority of the way. After creating this route, I sent it to my Garmin Zumo 550. Problem is, I didn't know if it routed properly until I attempted to navigate that route a week later when I left my folk's house. Rather than direct me on my "modified" Google route, it reverted back to what Google originally showed (shortest route, mostly interstate). So... how do you make it work where it will accept your custom routes? Can anyone suggest another map program that works a little better with these Garmin devices? It was so easy to create and store it. Shame it didn't work right.