The critical time is each time power is to be applied. When beginning from a., when accelerating, when entering a climb, after coasting down a hill.... Etc. This is when thee key opportunity toinfluence the nature of cycling occurs. And it intuitively invites all the wrong answers.
The correct answer is, seek yee 1st Egg beater perineum .... This is a key to circularity.
Circularity is a key to efficiency and long term effective use of energy. Fighting oscillations is the operative. And nothing material seems to be sacrificed.
What is sacrificed is the addictive false sense of initial power serge that the body so much likes. But this is very oh, completely, unnecessary. Is a gateway drug is it must be avoided.