I'll be damned, my Forerunner did show up as a mass storage device! For whatever reason I assumed that the cable with its funny looking 4-contact clip was used

I'll be damned, my Forerunner did show up as a mass storage device! For whatever reason I assumed that the cable with its funny looking 4-contact clip was used just for charging the tracker. Gotta say, this looks very promising. Thanks for the tip.