I speak from experience. My formerly owned road bikes sometimes had a chain jump problem when I was too fast when changing gears or did not take the time to adjust them when needed. When I started to use internal hub gears on both of my present bicycles (British 3 speed and a Dahon Boardwalk 3 speed) this problem was eliminated. And I gained far more in converting to hub gears now than I ever in those derailleur roadies.