Evening All ... and back to one of the OP's questions.
We haven't ever mudweighted overnight in a Broad yet. Great for a lunchtime stop but ... haven't quite brought ourselves to do it overnight.
My tip, though, is that there are a few moorings where you have to pay i.e. if they're not the free Broads Authority 24hour moorings, so the likes of Beccles, Oulton Broad, Norwich and a few places on the northern side. So we always like to have some cash with us in case it's needed ... not a commodity that most of us tend to carry around anymore.