Sushii has brought an assortment of shoes to the laboratory to see which ones maximize her comfort and control of the pedals of a stick-shift car. She begins by working each of the pedals in a pair of flat-heeled gladiator sandals, then tries a pair of closed-toe flats, then a pair of high-heeled sandals, then a pair of flat thong sandals, and finally, she works them barefoot. Which will she prefer? There's only one way to find out!