We just got back from 3 weeks on our boat. We anchored about half the time and used FCFS balls the rest of the days. We tried the Boaty ball option for a day that we were headed to Cooper but our internet was in a dead zone that morning so it did not work out. When we were at Leverick we noticed that most of the BB moorings were empty while the FCFS balls were all in use and a few boats were anchored. I suspect that once the Saba and Bitter End balls are back in play the only BB spot that will remain viable will be Cooper.