Converting Google Earth files to Lowrance

I haven’t tested this yet but I have a trip next weekend and was wondering if I’ve done this correctly. I first saved my google earth tracks, waypoints, etc as a .kml file within google earth. Then, using gpsbabel app I converted the .kml file to a lowrance .usr file. I then copied the .usr file to the microdisk that has the Topo Insight files on it. This disk installs in the lowrance unit. I’m hoping this way the tracks and waypoints will be overlayed on top of the topo maps.

Does this sound right? I dont have the rzr with me until the trip so wont be able to test it until its too late.

And btw, anybody have a Truckhaven tracks they want to share?