What are the three top metrics or measurements by which you monitor in real time how your swim, bike, run workouts are going? I would like to be more consistent and focused.
For swim sometimes I use heart rate zone, pace, etc.
For bike sometimes I use heart rate zone, rpm, power in watts, cadence, %FTP, speed, etc.
For run sometimes I use heart rate zone, pace, power in watts, cadence, speed, etc.
I am in information overload.