Shock loading is another concern and this photo is a good example of what happens when most of the caternary is removed due to storm loading and the mooring rode is snapped near bar tight.
Despite the heavy mooring chain, minimum of 1/2" for top chain in Falmouth, the cleats are likely taking a massive load here. Make sure your bow cleats are well backed and that the decks are sound in the vicinity of the bow cleats.