I use a Forerunner 305, but my question goes mostly to TrainingCenter.
From time to time, I've forgotten to press the "timer off" button at the end of a workout, such that my Forerunner 305 just sits there running, and tearing my record keeping to shreds, but driving my averages waaaaaaay down.
I could cure that if I could edit the file. That is, I could simply cut the length of the record of the workout to the actual length of the workout.
I have TC, Mapsource, Basecamp. Any way to do it?