Ski Tracks trim tool will allow you to cut the unwanted data from the start or finish of a recording. For example where you forgot to turn Ski Tracks off.
The Trim tool has an Undo feature and is non-destructive so you can always revert back to the original data.
Step 1 - Select Maps
Step 2 - Select Preview
Step 3 - Select Trim Tool
Step 4 - Position Start / Finish Cursors
Step 5 - Trim