Yes! (basemap=BaseCamp) This would be the best practice. The older units keep all tracks and waypoints in one single GPX file, where the newer units keep everything separated in individual GPX files. This is not to say that you can not have several tracks and waypoints in a single file on a newer unit, but you can not (as I remember from my 60CSX days) have several tracks and waypoints in separate files on older devices. From memory (caution, here), the 60CSx etc kept all this information in the current.gpx, while the newer units use the current.gpx file strictly for the current recorded track log. More info here.