It is from 11 years ago, but I think it's still pretty accurate.
It is my understanding that you have until sometime in March to resubmit your CFA if you think that you can do considerably better.
Someone will chime in here that knows a lot more than me - however - so hang on for a bit.
You have until Jan. 31 to resubmit your CFA (it used to be March, but that changed several years ago). Yes, you can submit new CFA scores until that date, even if the rest of your package is complete.
From my understanding your PE teacher or who ever would proctor the CFA will receive a code or something from USNA to enter the result. The coach told me yesterday he has the code to enter the result.