^Agree with 3 second averaging

You should buy the book, Training and Racing with a Power Meter. It is essential reading for anyone who is investing in power meter-based training. They have a few routines in the book beyond FTP to characterize your performance in all zones from Recovery, Tempo, Sweet Spot, Threshold, VO2max, etc.

I initially endeavoured to develop my own training programs, but now use Trainerroad instead.