I guess if the user didn't want to configure which track they were using every time, then the POI's not associated with any track could always be triggered when passed, and the user could later assign the lap time to a specific track. For instance if I passed a non-assigned "GO" and then l...

Just from my point of view, I would prefer if the software made you do step 2. A few of my tracks overlap, and I find myself having to delete Start/Finish icons and later replace them if they run near another track. I wish once you selected a track, it would ignore all POI's not associated with that...