I rode this route in 2005 and it was fantastic (if you like corners). Great roads, Beautiful scenery and plenty of places to stop. Our day was actually 13 hours as we started and ended in France but this section was by far the best part of the day.
Bosham-SMT120kms in the Swiss Alps, taking in the Grimselpass, Nufenenpass and Andermatt.
BBR-David