ATNotts: As one who does it often, the time difference driving Aachen-DUS or Aachen-CGN is negligable. Same goes for Leverhusen. I can't see very much high yield business traffic using the CGN service with the frequencies and timings offered. The Aachen, Duren and Leverkusen businessmen will opt for the higher frequencies offered from DUS. There will perhaps be more demand for leisure traffic from April to October. I'll be surprised if it continues into the Winter.