This sounds encouraging by all accounts. I just don't know how my numbers will compare to the proctors, who have substantial experience in assigning numerical scores to the five scoring categories. The rest I think I can get through reasonably well, even with an old worn out palate.
Its pretty subjective. But keep this in mind. 50 is perfect, nothing at all could ever be improved on, like at all. For example, an Anchor Steam, at the brewery, fresh off the faucet, in a year when all of the ingredients were all at their prime, might get somewhere between 42 and 48, even though it defines the Cal Common style. 30 "can" win a gold medal at NHC, in theory.
Having said that, I believe the best approach is to score em as you see em and let the chips fall where they may. I wouldn't worry about trying to think like someone else, or as they say, game it.