Remember this from the telly where they showed Michael Schumacher's throttle trace vs Johnny Herbert's. Skip forward to 2 minutes into the video to get to the important bit

You can see how Schumacher is off the throttle gently and progressively back on it, whilst Herbert has a more conventional sudden lift, followed by a hasty return to full throttle. Schumacher's throttle control makes him quicker in an F1 car.

Can we use the schumacher throttle technique in karts?

I fitted a sexy new throttle position sensor to the mychron4 with ebox and GPS to find out. I used two drivers, one who super smooth (Twinkle Toes) and the other with a more aggressive style (Lead Foot), and took them to Whilton Mill. I was astonished by the differences in time and how much time Twinkle Toes made in one corner... Almost half a second!!