I was able to sync with my ZUMO, but the route was broken up into several different routes when imported by ZUMO. Each waypoint is treated like a separate destination and route created for each waypoint instead of one continuous route. Anyone else have this happen?
You should have a START  and an END  anything in between should be a WAYPOINT.
Here's how I do it. If you want to ride certain roads, create a whole bunch of LOCATIONS along the way until you get to your destination. Once you have the route fine tuned, RIGHT CLICK on the LOCATIONS in between the start and end, one at a time starting with  and change them to WAYPOINTS.
The waypoints (the more the merrier) prevent the GPS from routing you the way it thinks is the best.
I have a route from Western Illinois to Rapid City South Dakota, that uses 7 roads..... and has 47 waypoints. That keeps the GPS from wanting to use roads that I don't want to use..
I like SD44 and my GPS likes I90.... so the waypoints keep me on SD44 and the nice scenery and away from the interstate in South Dakota. It allows my to pick and choose the interstates that I DO want to use, without turning them off in the settings.
If your route is a multi-day trip, at the end of the day, DO NOT hit STOP. Just let the GPS power down when you stop for the night (or breaks, including meals) .... When you fire the bike back up, the GPS knows it's still on the route, and just takes up where it left off.
I did 3900 miles in a 5 state loop last summer this way, and the GPS never missed a turn.