Cropping rides is something I'll be adding soon, but I hadn't thought about removing sections. Actually, at the moment, I'm essentially treating rides as arrays of records at one second intervals, so having gaps in the middle doesn't work. To be honest, I hadn't considered the use case where you have a single ride file that legitimately spans multiple days. I'll think about this.
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 ).
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).
