Thanks, that probably explains the behaviour I'd emailed you about. Niche use case though, there aren't that many of us long distance loonies out there (The Gre

Thanks, that probably explains the behaviour I'd emailed you about. Niche use case though, there aren't that many of us long distance loonies out there (The Great Southern Randonee 1200km late October starts quite close to you: http://www.gsr1200.com.au/gsr1200/Home.html http://www.gsr1200.com.au/gsr1200/Home.html ). Let me know if you need some example large data files to test scalability. I've got one .tcx file (with heart rate, cadence and power data) that's 41MB (would have been 53MB if I hadn't had to reset the GPS part way through).