After wise advice, thank you JM, Brilliant will be laid up in a skirt. We have perfectly adequate topsides cover for Brilliant, but the hull sides will be open to the drying effects of wind. After a careful and tight-fisted trawl of eBay I have ordered some breathable rip stop fabric for her first ever (I suspect) skirt. I am not saying she's fat, but it will take 25m to go round her waist. Adding 50m of bungee for top and bottom edges will be probably the longest hems I have ever sewn! There were dayglo pink options, but to save her blushes, and hide a winter's worth of dirt, this elegant garment will be in green camouflage. Wish me luck!