In preparation of sending a GPX file out to everyone who plans on participating in the upcoming RallyRaid Ontario event, those with Garmin Zumo's will need something other than TRACKS. As such, could someone with a Zumo let me know what works best for you? Waypoints or Routes!? For example, if I were to send you a route, would your Zumo recalculate it or would the integrity of the original route remain intact?! Case in point, one of the reason's I don't use routes, often times the terrain covered on a specified route crosses area's where roads don't exist. The Zumo's like to recalculate the route using existing roads.