Slowing down wasn't mentioned, but they were aware that we were experienced boaters. We saw very few moored boats, and not very many moving ones, it's still early season. All moving boats were hire boats, except for one or two large dutch barge style private boats. We did notice one boat charging along at max speed but this was an exception, its not really much of a problem as they are all shallow draft.
Tip: - in that area canal side communities are quite sparse, so bikes are very useful to get to the villages, if you want your fresh bread and pastries.