Maybe I'm doing it wrong - I tend to drop to a higher gear and stand up - my power obviously goes up but I don't get really high cadence doing this (or really high power!). Am I better off staying in a lower gear and spinning really fast?
Obviously the best answer is big gear and big cadence - but my best improvements in sprinting came when I focused on cadence. Not that I am particularly good - but I do averagely when it comes to a sprint.