Vagabond, the chain never came into play, the mooring lines held just fine. The boat did sustain some damage after wandering into her new neighborhood. An old wooden pleasure trawler lost it's pulpit and mooring lines. It's anchor fell out and played out to it's full length of line. This boat, on it's wide scope, swung into my boat and mangled the bow rail and ripped it out of the deck. Pineapple, bloody nose and all, finally came out of the water on Monday and is now in the boatyard. I have a line on a new bow rail from a boat junkyard in California and I'll be starting the deck repairs next week.