A different topic regarding winterizing - tying off the halyards when the boat is under cover. To avoid banging against the mast, I have tied them to temporary shroud cleats (install for winter and remove in spring). This past year I noticed that the cleats left a slight indentation in the shroud wire. It may not be meaningful, but I will be cautious about any further damage to the shrouds. All of the online information recommends running a messenger for winter storage. This is not hard, but it is one more chore and something else to go wrong come spring. Alternatively, I have seen one boat in our marina that tied a line to the turnbuckle, wrapped it around the shroud up through the cover and then tied off the halyard. It seems like it should work, but wonder if anyone had experience with this or another way to tie off the halyards with a boat cover.