No worries - it was kind of funny trying to negotiate a footpath and some back streets while thinking 'where the fuck is this route taking me?' Nearly turned back but found Bower Lane and figured that was the right road. Glad I didn't turn back as the next 10 miles or so were incredible.
ah sorry, just checked and tracking dropped in Eynsford so it tries to shortcut to Bower Lane. And yes needs something nicer to Mottingham Lane