I am curious how many nights you had like that in Cooper? In general I have not seen any real nights like you describe and I have been there many times with 2 or 3 boats per ball. The one time I saw it really ugly was when a thunderstorm popped up and generated a west wind at 30 knots. If the wind is light boats will move differently but if they bump it’s gentle. Backwinding can also move boats strangely and sometimes you get close but it seems to sort itself out. I have bumped another boat there exactly once. If it is a concern the northern balls have adequate spacing. Boaters can help by tying up with as short a leash as possible. Some leave way to much distance between the ball and boat. I do agree on the anchoring issue but I have not seen anyone anchor in the mooring field in a long time. If they do I let then know if there is any issue they will end up having to move their boat at 1 am!