Some ball might be favoured for depth (anegada) or shelter from wind etc.

If I was to use boatyball I would like the ability to choose from available balls.

There may be other reasons too. Swing room is not necessarily the same for all balls. There is at least 1 ball at Cooper to close to fcfs balls.

In my view, the problem is not enough mooring balls. The problem was never the need for a reservation system that merely introduces new problems