Originally Posted by
bikepro
Obviously it's not meant to be read at one time, however, if you think you may need a PM, you should at least understand Functional Threshold Power and feel a need to determine your own. If this doesn't interest you, a PM is probably a waste of your money.
Presumably anyone who actually spends the money on this is at LEAST going to make it that far! That's like buying a heart rate monitor and not bothering to establish your zones. Who does that?