There seems be more fine-tuning opportunities on the rider suit smoothness integrating to a soft conformal 'speedster hump' at the rider's tail. Anyway, removing the direct mechanical connections and using hydraulics is a simple yet elegant solution - 'Riding the Venturi' for street use!
Luigi Stipa had Caproni build him a flying Venturi tube. Everyone laughed by his studies but it influenced later turbofan jet engine designs.