OK, here are some more. Camped for a few days in Fussen (beautiful place) and walked/rode locally, but then hotelled on the road - two quite large passes to get over, so nice to be lightly loaded (sub 10 kg). Highly recommend this route to people - we didn't meet any other Brits doing it. Circa 80% seemed to be dedicated cycle route or very small open roads with no cars and most of the cycle route tarmac. Stunning scenery and wild flower meadows to die for (if you're into that sort of thing). Bookable bike bus/shuttle back to Fussen from Verona, and Fussen is a reasonably easy day's drive from Rotterdam.