And I would add check and service your rope cutter. Just before sailing to the Netherlands we noticed a knocking sound from the rear end which wasn’t related to engine revs. We put WildCat n the Royal Harwich scrubbing posts and checked the propeller. The noise reducing pads n the rope cutter were non-existent. The rattle continues, of course, awaiting the next lift out but we can live with it – at least it wasn’t a show stopper.