Yep; not familiar with your HB, but on mine there's a menu option to download the files to a clean HD card. When you want to upload, just put the card in the HB before you turn it on. When you do turn it on, it should recognize that it's got a file to upload and do it (it'll tell you what it's done). If they're all new points, you'll be fine. Watch the waypoint naming--if you've got 2 points with the same name, I can't remember what happens--could have two points with the same name, which could get confusing.