Tom,
I wouldn't have thought you would give Kennedy Bay and 8. It's not a long way behind National Moonah or St Andrews Beach but I wouldn't have thought you would give them an 8 either.
Am I right in saying that the descriptions you gave for each rating category were given after the ratings were done, to give the reader a general idea of what sort of courses was in each category? Do you regret doing so, in hindsight?