I’m pulling GPX files directly off a Garmin eTrex 30.  My camera’s (Nikon D610) clock is perfectly in sync with my GPS.  I’m importing the GPX track into Aperture.  It shows up correctly, and the I drag a photo onto the track and assign the photos from the project based on the track.  The photos do not get tagged correctly.  Maybe 10% of the photos show up accurately, but the rest are all over the place.  I don’t know where to start troubleshooting this.  Any help?  If you need more data from me, please let me know.  I’m happy to provide my GPX and NEF files.

-mike